Coil Spring for BYD F3: Brass
This coil spring for the BYD F3 is specified around brass, 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 a supplier who changed material without saying so, or warranty claims traced back to a single lot. Both are specification problems, and both are preventable.
Specification
| Product | Coil Spring |
|---|---|
| Vehicle application | BYD F3 |
| Material / finish | Brass |
| Typical use | Adventure Travel |
| MOQ | 500 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | TUV |
| Packing | 100 pieces per inner box, 1000 per carton |
Material options
- Sintered Metal — chosen where wear resistance comes first
- Forged Aluminium — used when the finish has to hold a coating
- Titanium Alloy — used when the finish has to hold a coating
- Semi-Metallic Compound — chosen where wear resistance comes first
- Ceramic Composite — preferred when weight matters more than rigidity
Processes available
- anodising
- precision stamping
- die casting
- CNC machining
- shot blasting
- ultrasonic cleaning
Fitment notes
Confirm the fitment against the VIN or the frame number before ordering; two model years often share a name and not a part.
Where it is used
The specification above is the one most often ordered for adventure travel. Related applications include ride-hailing fleets, adventure travel, airport ground fleets, rental fleets, motocross.
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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 pieces per line.
What is the minimum order quantity?
The standard MOQ is 500 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
How long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 5 days once you have seen the first piece.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.
