Q: Are you trading company or manufacturer ? A: We are Industrial Trading Company,We have our own factories and warehouses. Q: What is your delivery time ? A: 10-30 days depends on order quantity. Q: What is your payment terms ? A: We supprot T/T, Western Union and L/C. Q: Do you provide samples ? is it free or extra ? A: Yes, we could offer the sample for free charge but shipping cost will be covered by your side. Q: Can I have a product sample order? A: Yes, we welcome sample order to test and check quality. Q: What express do you often use to send the product samples? A:We usually ship samples by DHL,UPS,FedEx. It usually takes 3-5 days to arrive.