Each product is strictly tested to ensure that there is no problem in sending the goods. Q2. What about the lead time? A. Sample needs 5-10 days, mass production time needs 3-5 weeks, it depends on order quantity. Q3. Can I have a sample order? A. Yes, we welcome sample order to test and check quality. Q4. how can we guaranteequality? Always a pre-production sample before mass production; Always final Inspection before shipment;.syi