1. Is Sting3d a facroty or trading company?Sting3d is a leading factory in Chinese 3D industry with ISO9001, SGS, TUV proved.2. What's your term of delivery?We accept EXW, FOB, DDU, DDP, etc. You can choose the one which is the most convenient or cost effective for you.3. What about the lead time for bulk production?The fastest lead tie is 7 days after payment done. It depends on the quantity you order and whether you have customized packagingrequirements.4. Do you have any certificates on your products?Yes, our factory proved by ISO9001, SGS, TUV, etc. Similarly, our filaments have some Chinese and foreign certificates.5. Could you send products to my country?Yes, our products have been exported to Europe, USA, Australia, Canada, Japan, Korea, Africa, and many other countries. 6. MOQ neatly winding need each color MOQ 60 roll