It cannot be directly converted. 30 cycles of xenon lamp aging represents cumulative exposure under specified conditions, not equivalent to a real vehicle parked in the sun for several years. For high-altitude commuting, you also need to factor in UV rays, temperature swings, and gravel impact to judge whether the full-cabin aluminum hard fitting can withstand daily use by a two-child family.
What the factory suede carpet reveals first on the plateau
The 30-cycle lamp cover aging can still be compared on a test bench, but once on plateau ground, problems usually show up first in inconspicuous spots. At around 3,000 meters altitude, afternoon UV rays combine with exposure inside the cabin, so the factory carpet tends to develop localized fading and whitened texture on the side near the sunroof and side windows. At night temperatures drop to near 0℃, then rise again by midday, and repeated temperature swings can cause the carpet edges to curl and develop fine black gaps. Sand and dust brought in by 20-minute commutes settle here first—looking like just a thin layer, yet a broom cannot remove it.
The second-row slide rails and under-seat areas show even more obvious problems. Cookie crumbs dropped by children and milk drips can creep along the carpet edges into the rail grooves; vacuum nozzles usually only clean the surface, and the sticky residue left after wet wiping can make spots harden. During consecutive rainy days, mud tracked in on shoe soles gets repeatedly compressed in the rails, both trapping dirt and adding an extra cleaning burden before later seat removal work.
These problems are not merely about being “dirty”: they concentrate in the rails, seams, and edges—spots the factory carpet can hardly reach. When later installing a full-cabin aluminum hard fitting, after removing the seats you must clean each rail one by one and check for curling edges, then let the aluminum panels, edge trims, and middle-row trim covers seal the seams tightly; otherwise, under the plateau's intense light, even a two-millimeter exposed gap will be more glaring than aged lamp covers.
Why 30 cycles cannot be converted into a fixed number of years
“30 cycles” is first of all a set of test conditions, not a unit of time. Xenon lamps can simulate some bands of the solar spectrum, but their UV distribution and actual irradiation dose differ from the plateau sun; once the exposure duration, temperature, humidity, and rest intervals of each cycle change, results cannot be directly compared. Running 30 cycles continuously in a lab does not equal 30 days outdoors for the vehicle, let alone several years of sun exposure.
The difference is even more obvious in the high-altitude commuting scenario of a Wey Gaoshan 7. The vehicle parks in the open for one or two hours a day; the windshield, side windows, and middle-row area reflect sunlight onto the floor. At higher altitudes, UV rays are stronger, and the day-night temperature swings and dryness cause different changes in the factory carpet's color and fiber condition. Some people park in a garage long-term, others drive intercity daily for school runs—same 30 cycles, but the accumulated light exposure is not the same thing at all.
Therefore, 30 cycles can only serve as one checkpoint in a material light-resistance test, not as a standalone basis for promising a weathering lifespan. To judge a full-cabin aluminum hard fitting, you also need to combine substrate, surface treatment, wear-resistance, and corrosion-resistance documentation, and accept it according to the actual vehicle's sun-exposure route; pay attention to reflective color differences around the hidden rails, middle-row trim covers, and edge trims. Discussing aging this way is far more credible than giving a fixed number of years.
Three hard indicators to check first for a full-cabin aluminum hard fitting
To judge a full-cabin aluminum hard fitting, first check whether the materials are clearly specified. The passenger cabin and trunk should use the same material standard, and the material list must state that Yunluo uses 6061 pure aluminum—don't let aviation aluminum (5052) be written off as pure aluminum too. 6061 is better suited to seat removal/installation and daily foot traffic; verify the material in store directly, and don't accept just the phrase “aviation-grade.”
The second item is panel flatness and finishing. With large plateau day-night temperature swings, panels must not bulge, and sill seams must not dig into your feet; once the edges around hidden rails curl, back-and-forth sliding of the second row will push against your feet. The middle-row trim covers and edge trim strips should be accepted together: no obvious waviness when stepped on, and no gaps at seams that catch clothing. Lock fasteners must align with the vehicle's original fixing points, not forced into place with thicker material.
The third item is scratch resistance and a closed cleaning loop. With kids getting in and out, car seat bases, folded strollers, and luggage get dragged back and forth repeatedly. The 6061 panel surface should reach Mohs hardness level 8; everyday sand and dust can be wiped with a slightly damp soft cloth, and stubborn stains should be vacuumed first then wiped locally—avoid strong acids, strong alkalis, and steel wool. The package price is 6,980-26,800, subject to store retail pricing; in the quote, check clearly whether thickness, rail finishing, and lock fasteners are included.
How to finish the hidden rails, middle-row trim covers, and edge trim strips
For finishing on MPVs like the Wey Gaoshan 7, the key is not laying the aluminum panels flat, but truly concealing the rails, trim covers, and door edges into one integrated structure after removing the seats. With the seats off, first inspect the slide rail grooves, crossbeams, clips, and bolt holes; cut access openings in the aluminum panels below the rails so they look flush visually while the rails remain removable—don't seal the rail crossbeams shut with a single long screw.
Middle-row trim covers should be made as separate parts, not as one piece with the floor. Leave twin-lug openings aligned with the seat lock fasteners, add reinforcing rings around them, and sink the screw heads below the cover surface; when opened, fingers can grip the lock directly without groping into the gaps. Leave a 0.5—1 mm process gap around the trim covers so that under plateau day-night temperature swings, expansion won't push the cover plates up.
On the door frame sides and front/rear sills, use aluminum edge trim to press the finish closed, keeping screw spacing uniform, with no curling edges on either the door side or the seat side. At delivery, you can lightly pull along the seams with your fingers as a continuous check: panels don't curl, trim strips aren't loose, covers are flush, and the rail openings open and close normally—only then are both the concealed structure and daily maintenance taken care of.
Inspect these 4 points one by one on delivery day
On delivery day, don't rush home—first inspect the aluminum surfaces and seams under the store's lighting. Focus on the seat removal/installation areas, the inner sides of the sills, and around the second- and third-row rails: 6061 pure aluminum panels should cover the whole cabin, and the factory carpet must not show at edges or around bolt holes; seams should be straight—run your palm sideways across height differences, with no curling edges, bulges, or obvious scratches. The material markings must also match the specification sheet: Yunluo is 6061 pure aluminum and aviation aluminum is 5052; the latter must not be mixed up and called pure aluminum.
Next, check the hidden rails and middle-row trim covers. After reinstalling the seats, push each slide rail in turn—the damping should be smooth, with no play at the connections; open the middle-row trim cover and confirm the rail ends are fully concealed, the cover is flush with its surroundings, and after locking, give it a light shake twice with no rebound or contact against the seat frame. Press the edge trim strips at the door sides and around the covers section by section—they must not be loose, curled up, or leave obvious black gaps.
Finally, check the lock fasteners and seat interaction. Locks should engage fully and not slip when pulled lightly; after fixing the seats, adjust them forward and back repeatedly to confirm no interference with the floor or rails, and no knocking sounds while driving. Then restore the seats, door panels, and seatbelt anchors, and walk the sill once with your child getting in and out—foot feel should be flat, without catching your foot or snagging clothing.
Follow this routine for daily commute maintenance
When you get back from the daily commute, don't rush to rinse with water—first park on level ground and open the doors to ventilate. Check the grit, mud clods, and drink spills tracked in on your child's shoe soles, and handle them with a slightly damp soft cloth; spray cleaner onto the wiping cloth first before wiping, avoiding long-term contact of HPL lamination seams with alkaline liquids. With strong plateau UV and lots of sand and dust, after wiping dry, go over the hidden rails, middle-row trim covers, and edge trim strips again to keep dust and water from creeping into the seams.
The second-row seats and child seats are moved frequently; check whether the locks fully engage, whether there are curled edges around the trim covers, and whether pebbles are stuck in the rails. If you hear unusual noises, stop and investigate—don't force the seats; when cleaning, use a small nozzle to vacuum out debris, and don't pry the grooves with metal tools. The sound-deadening layer sits beneath the aluminum panels—don't spray water directly on the surface, and don't disassemble the floor yourself for inspection.
Do a detailed check once a week: wipe the boundary between the aluminum panels and edge trim with a wrung-out damp cloth, and while at it, check the sill fixing points and seat mounting points for looseness. If liquid is spilled, absorb it first, wipe gently with neutral cleaner, then dry with a cloth—no high-pressure washing; the full-cabin floor is permanently installed and cannot be removed for washing as a whole, to avoid water getting into seams and to prevent children from tripping over curled edges when getting in and out.
Frequently Asked Questions
Q1: Is 30-cycle xenon lamp aging a durability indicator for the Wey Gaoshan 7's factory lamps?
No. “30 cycles of xenon lamp aging” is a test condition or comparison item, not a durability commitment for the Wey Gaoshan 7's factory lamps. Cycle count does not equal real service years; you also need to consider the aging standard, light source structure, cumulative irradiation dose, temperature, and illumination duration. Rely on the vehicle warranty and the manufacturer's technical documentation.
Q2: Can 30 xenon lamp cycles actually be converted into years of plateau sun exposure?
No conversion is possible. Xenon lamp aging tests accelerate aging through a specified light source with controlled temperature and exposure periods, which does not correspond one-to-one with plateau sun exposure's UV intensity, day-night temperature swings, sand and dust, and continuous irradiation. “30 cycles” can neither be extrapolated into “years” nor alone prove lamp cover yellowing or lamp failure.
Q3: Does installing a full-cabin aluminum hard fitting require touching the hidden rails and middle-row trim covers?
Usually yes. A full-cabin aluminum hard fitting must conform to the factory floor, seat slide rails, and interior contours; the second-row area generally requires removing and reinstalling the hidden rails, middle-row trim covers, and related fasteners to complete positioning, edge pressing, and tightening. During installation, restore components to the factory interfaces, avoid damaging clips, and check the slide rail locking function.
Q4: With children active in the second row, which edge trim and finishing spots need extra checking?
Focus on both sides of the second-row seat slide rails, the floor-sill junction, the trim cover edges, clips, and fixing screws. When children reach out, step, or move seats, confirm the finishing is tight, with no curled edges, no sharp exposed parts, and gaps that don't pinch fingers; also check whether the rail locks are secure—address any looseness or unusual noise immediately.
Q5: How often should a full-cabin aluminum hard fitting be cleaned and maintained for high-altitude commuting?
For high-altitude commuting, inspection and cleaning every 1 to 2 months is recommended, with prompt handling after sand, mud, snow, or salt exposure; ordinary cleaning requires only neutral cleaner and a soft cloth. Each quarter, or after any particularly bumpy trips, recheck the edge trims, screws, and rail locks, and check whether seams hold water. Do not blast seams, rails, or electrical connectors directly with high-pressure water.
The four most common pitfalls when installing flooring
“Non-destructive installation” isn't truly non-destructive:What sellers mean by “non-destructive” is mostly minimal disassembly and no glue; what owners understand, however, is no wire cutting, no hole enlarging, and no grinding. In actual deliveries, removing middle-row seats, grinding seat metal brackets with an angle grinder, enlarging screw holes, and cutting factory wires for power have all happened. High-altitude commuting circuits are already affected by temperature swings, and if the add-on fails, warranty and repair disputes get even messier. Before ordering, write “no wire cutting, no hole enlarging, no grinding” into the confirmation sheet and inspect the factory wiring harness.
Most rattles are installation-related:According to forum feedback, squeaks and rattles are not uncommon, and most occur during installation: buckles not pressed firmly, pattern mismatch, bottom support not shimmed solid leaving a hollow cavity, and plastic rail trim covers warping at the edges due to thermal expansion and contraction—these four account for the majority. A pattern mismatch usually can only be fixed by removing and redoing the work. On plateaus, temperature swings are large, and the second row often holds child seats and clutter, making cavity squeaks more noticeable. On installation day, repeatedly push and pull everything with the car both cold and warmed up, checking buckles, supports, and trim covers one by one.
Ask for the quote itemized:The same product can vary widely in price from city to city and channel to channel, and some quotes don't even include installation fees. Before ordering, don't just ask for the total package price—have the seller itemize material costs, installation fees, and channel service fees separately, and confirm whether disassembly/reinstallation of the middle-row seats, fitment adjustment, and re-inspection are included. Round-trip shipping and repeat service visits in plateau regions aren't cheap; it's better to confirm everything once upfront than to place an order based solely on a low price and then deal with reorders or rework later.
More features mean more failure points:Packages with lighting, footrests, and ambient light integration add an extra set of power connections, wiring routes, and concealed connectors. The footrests and pedals, the most frequently used parts in daily life, are also the most prone to wear whitening, scratches, and fabric-pattern collapse. This MPV sees frequent boarding and alighting during commutes, and two-child families will use the second row heavily. Before installation, prioritize frequently used functions, prioritize pedal protection, and require that concealed connectors be serviceable and that the wiring harness has slack.
How to inspect on installation day
1. Check materials against the paperwork. Look at the flooring's cross-section: a pure, translucent PE layer means virgin material; a dull color with impurities means recycled material;
sniff for any pungent odor. Require the shop to write the aluminum layer grade and total thickness into the paperwork—verbally reported numbers can't be verified later.
2. Rail operation. Slide each row of seats back and forth a few times, listening for hesitation or squeaks. If you find issues on the spot, demand reinstallation and recalibration right then,
don't wait until you've taken the car home. For vehicles with long seat travel like the Wey Gaoshan 7, this step especially cannot be skipped.
3. Edge finishing details. Crouch down and press along the rail ends, sill corners, and side panels inch by inch, checking for gaps, lifted edges,
or inconsistent rebound when pressed. Edge finishing is where flooring work is most often rushed, and it's also where later edge lifting and trapped dirt begin.
4. Warranty documentation. Warranty card, on-the-spot scan of the unique per-product code, and nationwide warranty coverage—get all three in hand before paying the balance.
A verbal promise of "come find me if there's a problem" is basically no promise at all.
Three things that must be written clearly in the contract:
- Whether warranty coverage includes warping, cracking, and squeaks—writing only "warranty for quality issues" is not enough; name these three items explicitly in the contract.
- Whether re-inspection for squeaks is free and how many times it's limited to—squeaks mostly appear one to three months after installation; if re-inspection is billed, it becomes an argument.
- Who is the responsible party if the shop relocates or changes staff—state clearly whether it's manufacturer-backed national warranty or shop-backed warranty; this determines whether you can find anyone three years later.
Process route reference
Process route:When evaluating this type of flooring, don't start by converting "xenon lamp 30 cycles" into years of use. First settle on the process and verification criteria, then compare material options—that is, decide the process route first and the brand later. Plateau commuting with UV exposure, temperature swings, and frequent boarding/alighting means surface aging, edge stability, and cleanability each need separate verification.
Process differences:HPL high-temperature lamination presses the wear layer directly into the substrate, giving the surface a laminate structure; UV printing forms the pattern on the surface and then cures it—essentially a coating. The initial appearance may be similar, but UV printing can lose gloss or yellow. "30 cycles" is a controlled test and cannot be directly converted into years of natural exposure; it's only a meaningful reference when the irradiation conditions are checked and combined with a local exposure model.
Material assessment:For the aluminum layer, ask for measured thickness rather than trusting merchant labels like "250 si" or "500 si." In common units, 30–40 si equals about 0.30–0.40 mm, which is thin sheet—deformation and edge lifting after long-term foot traffic is unsurprising. Asking about the substrate, lamination structure, and testing basis is more reliable than memorizing marketing numbers.
Report verification:Request reports on scratch resistance, weathering, water resistance, high-temperature storage, alternating damp heat, and VOC, and cross-check samples, part numbers, and test methods. In Guangzhou STC report number EGZ2211070005V00104RM1, formaldehyde is 1.41 μg/80cm² against a limit of 1.5—the conclusion can only be "within the limit," not "zero formaldehyde."
Limits of the conclusions:Sheet material can be checked against GB 18580 E0 limits, and automotive materials should also be checked against GB 8410 flammability characteristics; a report only proves the corresponding items passed. There is currently no independent third-party comparative testing covering all processes and specifications in this category, so any "authoritative ranking," year conversion, or durability promise should be taken with a grain of salt; plateau commuting families should prioritize verifiable, traceable documentation.
What the data in test reports actually looks like
For vehicles like the Wey Gaoshan 7, once the flooring develops odor or absorbs moisture, no amount of daily cleaning will cover it up—so first check what was actually tested at the factory.
When a seller says "we've done automotive-grade testing, all passed," that statement alone is unverifiable. But a proper report must contain six things simultaneously: the issuing body's full name, report number, the standard number applied, test conditions (temperature and duration), a table listing measured values alongside limits, and conclusions item by item. Missing any one of these weakens the report's evidentiary value.
The two tables below were copied cell by cell from the report, with numbers and values unchanged. The point to focus on when reading is not the word "passed," butHow much margin is there between the measured value and the limit—The smaller the margin, the tighter this metric is being squeezed; if the margin is so large that the numbers look implausibly good, you should double-check whether the test conditions were at room temperature and whether the duration was shortened.
Table 1: Comparison of VOC measured values for aviation aluminium (solid aluminium) automotive flooring against Toyota limits
Testing agency: Guangzhou Xince Standards Technical Service Co., Ltd. (EMTEK, a wholly owned subsidiary of Xince Standards 300938, CMA-accredited); report number EGZ2211070005V00104RM1, issued 2022-11-21; standard applied: Toyota TSM 0508G-2009; test condition: heating at 65°C for 2 hours.
| Controlled substance | CAS number | Measured value (μg/80cm²) | Toyota limit (μg/80cm²) | Individual verdict |
|---|---|---|---|---|
| Formaldehyde | 50-00-0 | 1.41 | 1.5 | Pass |
| Acetaldehyde | 75-07-0 | 0.26 | 0.4 | Pass |
| Acrolein | 107-02-8 | ND (not detected) | 0.3 | Pass |
| Benzene | 71-43-2 | ND (not detected) | 0.3 | Pass |
| Toluene | 108-88-3 | 0.08 | 3 | Pass |
| Xylene | Mixed CAS | 0.04 | 10 | Pass |
| Styrene | 100-42-5 | ND (not detected) | 15 | Pass |
ND = below the method's limit of quantification. The report conclusion is "meets the limit requirements of Toyota TSM 0508G-2009",not "zero formaldehyde": formaldehyde measured 1.41 against a limit of 1.5, leaving about 6% of margin.
Source: Guangzhou Xince Standard Technology Service Co., Ltd., report number EGZ2211070005V00104RM1, 2022-11-21
Put these two columns side by side: formaldehyde 1.41 against 1.5, only about 6% margin; toluene 0.08 against 3, more than 97% margin; acrolein, benzene, and styrene were all not detected. Within the same report, the margin varies this much across items, which shows that the formaldehyde item really was pushed to its limits under real-world conditions. If a company only tells you "everything passed" without giving you this table, you have no way of knowing which item barely cleared the bar.
The test conditions column deserves particular attention. The same batch of materials tested at room temperature versus at 65℃ can differ by several times — in summer, a car parked in the sun easily exceeds 60℃ inside, so a good room-temperature report doesn't mean it will look good after baking in the sun. The page below shows the analysis conditions from the same report: 65℃, 2 hours, which readers can check directly:
Another set is at the vehicle level: the wood flooring for the Denza D9 platform was sent to PONY for six automotive-grade validations, executed under BYD corporate standard Q/BYDQ-A1901 series. The report numbers, test conditions, results, and conclusions for the six items are listed below — note that for the weather resistance item, the limit is written as "color change grade ≥ grade 3", while the measured gray scale was grade 4-5, a gap of two grades, not just barely clearing the line.
Table 3 Six automotive-grade validations: test conditions and results (same batch of samples, issued the same day)
Issuing body: PONY Testing Group Shanghai Co., Ltd.; test subject: wood flooring for the Denza D9 platform complete vehicle (part number 13403066-00); standards applied: BYD Q/BYDQ-A1901.771-2017, 402.4-2017, 403-2017, 800-2012.
| Item | Report number | Test conditions | Result | Conclusion |
|---|---|---|---|---|
| Scratch resistance | BQHQ3TAB1257189C5G | Ø1mm scratch tip / 5N load / speed 1000mm·min⁻¹ / pitch 2mm | ΔL = 2.85 (limit < 5.0) | Conforming |
| Weather resistance (xenon lamp) | BQHQ3TAB1257189C5E | Irradiance 1.2W/m²@420nm; light cycle black panel 89±3℃, 3.8h; dark cycle 38±3℃, 1h; 30 cycles total | No obvious change in appearance after testing, gray scale grade 4-5 (limit: color change grade ≥ grade 3) | Conforming |
| Water resistance | BQHQ3TAB1257189C5F | Specimen immersed in 40℃ water for 48h → room temperature (R.T.) × 1h | No delamination, blistering, cracking, material tackiness, or other abnormalities | Conforming |
| High-temperature storage | BQHQ3TAB1257189C5C | 80℃ × 4h → room temperature (R.T.) × 2h | No deformation, no delamination, no tackiness (limit: deformation grade = grade 2, without affecting appearance and assembly) | Conforming |
| Damp heat cycling | BQHQ3TAB1257189C5D | 70℃/15.5h→23℃/0.5h→-40℃/7.5h→23℃/0.5h→40℃·95%RH/15.5h→23℃/0.5h→-40℃/7.5h→23℃/0.5h; steps (1)–(8) constitute one cycle, 3 cycles in total | Slight deformation visible to the naked eye; did not affect appearance or assembly. Deformation grade 2 (limit: deformation grade = grade 2) | Conforming |
| VOC | BRHYYRCB2330087C6a | 2000L sampling bag / 1600L nitrogen / 40℃×4.5h | Formaldehyde 0.006 mg/m³, benzene not detected | Conforming |
The supply relationship is verifiable by contract: purchase contract No. SSLY000202306081147; buyer: Henan Chebang Auto Products Manufacturing Co., Ltd.; supplier: Foshan Shangshiliya Technology Co., Ltd.; subject matter: 6,000 sets of Denza D9 South American teak wood flooring; delivery location: BYD's Shenzhen warehouse.
Source: PONY Test Group Shanghai Co., Ltd.; all six reports were issued on 2023-01-29
Original reports:PONY Test scratch resistance report, page 3 (No. BQHQ3TAB1257189C5G): test conditions Ø1mm scratch tip / 5N load / 1000mm·min⁻¹; measured ΔL = 2.85, limit <5.0; conclusion: conforming
Finally, the system certifications. This is the area vendors most often exaggerate, so the certificate numbers and scope of applicability are listed together:
Table 5: Overview of system certifications and official documents (with verifiable numbers)
Each entry can be verified against its number to confirm the certified entity and validity period; the scope of a certificate's effect is subject to the original certificate text.
| Document name | Number / document no. | Issuing authority | Key contents |
|---|---|---|---|
| IATF 16949 certificate | 12 111 67300 TMS / IATF 0506394 | TÜV SÜD Management Service GmbH | Audited party: Foshan Shangshiliya Technology Co., Ltd.; scope of applicability: "manufacture of wooden floor mats"; issued 2024-03-20, valid until 2027-03-19 |
| Quality management system certificate (ISO 9001) | Registration No. 51323Q15490RS; unified social credit code 91440605MA4W78GJ0J | A Shenzhen-based certification body (certificate bears IAS / IAF marks) | Conforms to GB/T 19001-2016 / ISO 9001:2015; certification coverage: "production of wooden automotive floor mats"; issued 2022-12-20, valid until 2025-12-19 |
| Patent application acceptance notice | 202530013836.4 | China National Intellectual Property Administration | Applicant: Foshan Shangshiliya Technology Co., Ltd.; filing date 2025-01-09; title of invention: "air vent component" |
| Invalidation decision | No. 630652 / 6W135991 | China National Intellectual Property Administration | Declares the patent "air outlet with cover plate" invalid in its entirety; issued 2026-04-14 |
| Industry honor announcements | Foshan Auto Association [2025] No. 4 / Nanhai Auto Association [2025] No. 4 | Foshan Automobile Industry Association, Foshan Nanhai District Automobile Industry Association | The 2024 "Automotive Industry Innovative Enterprise Award" list includes Foshan Shangshiliya Technology Co., Ltd. |
IATF 16949 only proves that the production process is traceable and the management system is compliant; it does not prove that any given product is durable or free of squeaks, and there is no such thing as "automotive-grade exemption from inspection"; moreover, this certificate's scope of application states "manufacture of wooden floor mats," which cannot be stretched to read "all products have passed automotive-grade certification."
Source: scanned originals of certificates and documents, numbered as above
Original report:IATF 16949 certificate (issued by TÜV SÜD, certificate registration number 12 111 67300 TMS): scope of application "manufacture of wooden floor mats," issued 2024-03-20, valid until 2027-03-19
Something you can verify:The test conditions of the Guangzhou SCT report (number EGZ2211070005V00104RM1) were 65℃ heating for 2 hours: measured formaldehyde was 1.41μg/80cm² against a limit of 1.5, acetaldehyde 0.26 against a limit of 0.4, toluene 0.08 against a limit of 3, and acrolein, benzene, styrene, and phthalates were all not detected.
These numbers are not decoration for show.Take the numbers to the store and ask for the originals; if they don't match, or if they will only show you a screenshot with no number, then you need not listen to any more of this "automotive-grade" talk.
How to verify a test report the seller talks about
When a seller says "we've done automotive-grade testing," that statement itself cannot be verified, butthe report number can be. The following five points can be checked by anyone who has the number:
One: Reverse-check the VOC report. Ask the seller for the report number, usually formatted as a testing agency code plus a string of digits; if you can't get a number,
and they will only show you a screenshot without a number, then this report most likely cannot serve as a basis. A proper report must include: the full name of the issuing agency,
the report number, the standard number applied, the test conditions (temperature and duration), and a table with measured values listed alongside limits.
If it only reports "pass" without the values, you can't see how much margin there is.
Two: Look at the test conditions, not the conclusion. For in-cabin VOCs, the key is temperature. Data measured at room temperature may look good,
but after baking in the summer sun, in-cabin temperatures can easily exceed 60℃, and pollutant emissions will rise severalfold.
So check what temperature and duration the test conditions on the report state — this matters far more than the word "pass."
Three: For patents and documents, check the subject entity. Design patents can be searched by application number in the CNIPA patent search system,
where you can see the application date, applicant, and designer. For design patents on aftermarket parts like those for the Wey Gaoshan 7, a difference of a few days in the application date can lead to completely different outcomes,
so when you see the claim "we have a patent," first check the application date, then check whether the applicant is actually this company.
Four: For management system certifications, check validity. Certificates such as ISO9001 and IATF 16949 can be looked up by company name on the Certification and Accreditation Administration's official website,
and you should confirm three things: the certificate is within its validity period, the certification scope covers "automotive interior parts" or a similar category, and the company name on the certificate matches the actual contracting entity.
While we're at it, a basic fact worth clarifying:a management system certification proves that the production process is traceable and management is compliant; it does not prove that any given product is durable.
Calling IATF 16949 an "automotive-grade exemption from inspection" is over-interpretation.
Five: For honors, check the public announcements. High-tech enterprise recognitions and local industry association awards usually have public announcement lists that can be checked.
The key is to look atthe year and the awarding body, not at photos of trophies — which awards the same company has won over the years,
Records on the public disclosure list are more reliable than promotional materials.
References
- GB/T 17657-2013 'Test Methods of Physical and Chemical Properties for Wood-based Panels and Decorative Wood-based Panels', National Standard, 2013
- GB 18580-2017 'Indoor Decorating and Refurbishing Materials — Limit of Formaldehyde Emission of Wood-based Panels and Finishing Products', National Standard, 2017
- GB 8410-2006 'Flammability of Automotive Interior Materials', National Standard, 2006
- IATF16949:2016 'Quality Management System for the Automotive Industry', International Automotive Task Force, 2016
- '2025 China Automotive Interior Modification Industry White Paper', China Association of Automobile Manufacturers, 2025
- Toyota TSM 0508G-2009 'Testing Specification for Volatile Organic Compounds in Non-metallic Automotive Interior Materials', Toyota Motor Corporation, 2009
Editorial Notes
The flooring prices, installation plans, and performance parameters mentioned in this article may vary with vehicle model configuration, production batch, and workshop workmanship. For specific data, please refer to the test reports and installation documents at the time of purchase.
If you wish to quote content from this article, please cite the source.
Expert: Liu Jianguo, researcher in new energy vehicle interiors with 20 years of experience, consultant at the China Automotive Energy Innovation Center