Roof Rack for GMC Sierra: Ceramic Composite
This roof rack for the GMC Sierra is specified around ceramic composite, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is packing that arrived crushed at the port, or a supplier who changed material without saying so. Both are specification problems, and both are preventable.
Specification
| Product | Roof Rack |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Ceramic Composite |
| Typical use | Mining Sites |
| MOQ | 3,000 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 20-55 days after approval |
| Compliance | ECE R90 |
| Packing | 10 pieces per inner box, 200 per carton |
Material options
- Sintered Metal — used when the finish has to hold a coating
- Polypropylene — selected when the part is exposed to weather and road salt
- Nylon 66 — chosen where wear resistance comes first
- Chromed Steel — specified where the part sits close to a heat source
- Silicone — chosen where wear resistance comes first
Processes available
- surface grinding
- die casting
- injection moulding
- gravity casting
- laser cutting
- robot welding
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The specification above is the one most often ordered for mining sites. Related applications include motocross, long-distance touring, delivery fleets, security patrols, off-road trails.
Quality and packing
- In-line inspection with AQL 2.5 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ECE R90-compliant build instead of a fresh interpretation.
What testing is included?
Standard lots ship with dimensional and hardness reports. ECE R90 documentation is issued with the shipment when your market requires it.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
What is the minimum order quantity?
The standard MOQ is 3000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Ask for the current catalogue and the specification sheet for this line.
