How to buy components from China?

1. Ask your supplier to at least provide you their company registration. It's for your safety in case of they don't ship you goods after payment.

2. If buy parts over 10k usd, ask your supplier to provide you test reports from third lab like white horse.

3. There are such type of goods in market.

a) genuine original new parts   

b) refurbished parts

c) bulk parts (not in original package, it could come from original manufacturer, but not pass final QA products.)

d) fake parts (probably manufactured by unknown factory, sell as original parts)

4. About leadtime: within 1 week(stock in China),  2-3 weeks(stock in oversea warehouse), over 3 weeks (stock information not 100% sure, or pre-order parts still in original manufacturer)