continue to improve, to ensure product quality in line with market and customer standard requirements. Our company has a quality assurance system have been established for Steel Pipe Material, Moly Alloy Pipe , 12crmovg Alloy Pipe , Low Pressure Alloy Tube ,12crlmov Alloy Steel Pipe . We welcome new and previous customers from all walks of lifetime to speak to us for future organization relationships and mutual achievement! The product will supply to all over the world, such as Europe, America, Australia,Berlin , Palestine ,New Zealand , Singapore .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.