No matter new customer or old customer, We believe in long term and trusted relationship for Gate Valve, Flexible Rubber Expansion Joint, Operated Resilient Seated Gate Valve, Rubber Bellow, If you have any comments about our company or products, please feel free to contact us, your coming mail will be highly appreciated. Sticking to the perception of "Creating products of top of the range and earning mates with people today from all over the world", we constantly put the desire of consumers in the first place for Gate Valve, We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.