Q1: Are you trading company or manufacturer ? A: We are professional manufacturer with 15 years experience, and warmly welcome you visit our factory.

Q2: What about your sample policy? A: Standard products in stock or simple sample: charge express fee only; Complicated sample: we will refund after place mass order.

Q3: Can you produce according to the samples? A: Yes, we can produce by your samples or technical drawings.

Q4:How about your delivery time? A:Standard products in stock: About 3 days; Customization products: 15-25 working days. More than 5000pcs should be negotiated with the customer.

Q5: What is advantage of Zhengbiao Gear? A: We have implemented a strict and perfect quality control system for 15 years, which ensures that each product can meet quality requirements of customers.