Standard（like DIN Germany standard, ANSI American standard, AS Australian standard），drawings, product quantity, material and special requirements.

Yes, samples are available. For sample fee, it depends on different situation. If need sample fee, but Usually it can be refunded when mass production meets our rule. For delivery time, it different from different standard, products and quantity.

500-1000 pieces for standard accessories, 100-500 pieces for non-standard parts, and 50 pieces and less for special small parts (negotiable).

Incoming inspection → Check standards and drawings → finished product inspection (full inspection of function, appearance, and packaging according to standards) → disposal of non-conforming products. Quality engineer determines "concession acceptance, rework, scrap" → shipment release. QA manager verifies that all inspection records are complete and qualified.

1. Acceptance and registration: The customer service specialist will respond within 2 hours.
2. Problem classification
3. Reason analysis and solution
4. Customer confirmation
5. Closing and Archiving.