1. Factory or trader — ask for the business licence, plant address and machine list
2. Tooling ownership — who builds the mould, who owns it, is it re-charged on reorder
3. Casting and plating control — porosity control, full plating stack, in-house or subcontracted
4. Document package — FAI, PPAP, RoHS, control plan, COC: sample copies before you order
5. Sampling gates — 3D render, T1, range boards, golden sample, each signed
6. Lead times quoted separately — tooling, sampling and production as three numbers
GCX answers all ten in one round — in-house tool room, casting, polishing and plating in Dongguan; DFM quote in 2 working days.
The full checklist: https://gdgcx.com/how-to-ve ...
Factory: https://gdgcx.com
