Q1: Are you a manufacturer? Yes. We have been in packaging bags production for more than 10 years. Our factory is located in Shenzhen. Q2: Can you customize the postal package courier bag for my company? Yes. Both OEM and ODM are available. Q3: If we want to get a quotation, what information you need to know? 1. The demand quantity. 2. Detailed specs(material, size, thickness, color, logo sketch or photo). 3. Packaging. 4.Other special requirements. Q4: If I want to order from you, what's the MOQ of this bag? normal MOQ is 5000pcs,but no strictly request，the more quantity，the less price. Q5. Whats the quality assurance we provided and how do we control quality ? 1. Established a procedure to check products at all stages of the manufacturing process - raw materials, in process materials, validated or tested materials, finished goods, etc. Besides, we have also developed a procedure which identifies the inspection and test status of all items at all stages of the manufacturing process. 2. 100% inspection in assembly lines. All controls, inspections, equipment, fixtures, total production resources and skills are inspected to ensure they consistently achieve the required quality levels1. Good quality This bag is tightly heat-sealed and tightly sealed with constant tension. The bag is not easy to burst, and it is strong and durable. 2. Clear printing We can customize and print various colors, LOGO and patterns, and the printing colors can be as many as 8 or more. And it is printed by advanced printing machines to achieve the best printing effect. 3. Weight bearing We adopt a hand-held design and a widened bottom, which has stronger bearing capacity and firmness. The heavy objects are not easy to damage and can be recycled.