Q: Are you trading company or manufacturer ? A: We are factory with the import and export right.Q: How long is your delivery time ? A: Our delivery time is 20-35 days, we can finish the small order within 10 days.Q: How can I get your product as sample to test? A: Please contact us for sample at any time, we are pleased to offer you sample order & small order.Q: How to control the quality ? A: We have our own QC department in our factory to make sure that all our products are in very good quality before ship out to customers.Before delivery clients could send one QC or point the third party to check the quality.Q: What is your terms of payment ? A: Payment will be though T/T, L/C, WEST UNION, ESCROW, ETC.Especially ESCROW, which is guaranteed by Alibaba.com. It is safe and effective.Q: Could you print our company logo on the packaging?A: Sure, we can offer OEM/ODM service.Q: Do you have warranty on your products?A: We provide one year standard manufacture warranty with spare parts supply.Q: Can I mix different models in one shipment?A: Yes, of course.