We believe in: Innovation is our soul and spirit. Quality is our life. Shopper need is our God for couplers, Weight Ms Square Pipe, Black Erw Pipes, Square/Rectangular Steel Pipe,Seamless Tubes. Our Company Core Principle: The prestige first ;The quality guarantee ;The customer are supreme. The product will supply to all over the world, such as Europe, America, Australia,Palestine, Bandung,Afghanistan, Brisbane.Our monthly output is more than 5000pcs. We have set up a strict quality control system. Please feel free to contact us for further information. We hope that we can establish long-term business relationships with you and carry out business on a mutually beneficial basis. We are and will be always trying our best to serve you.