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 Round Coupling Nuts, Tapping Screw , Threaded Rods , Carbon Steel ,Studs . All merchandise are manufactured with advanced equipment and strict QC procedures in purchase to assure high-quality. Welcome prospects new and old to get hold of us for enterprise cooperation. The product will supply to all over the world, such as Europe, America, Australia,India , Jeddah ,Bangkok , Milan .Our solutions are widely recognized and trusted by users and can meet continuously changing of economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!