Q1 What about the delivery time? Normally, 7-15 days. Q2 How to keep high-quality? 1.Products’ materials will be strictly tested by our QC team. 2.Finished products will be rigorously inspected by our QC team. Q3 Are you a factory or a trading company? We are the factory with rich experience in trading.We can provide better service and more favorable price. Q4. Can you offer any certification? We can offer CB certification. By the way, any other certifications you need, feel free to talk to us. Q5 Can I get some samples? Sure.