Zhoushan Haiwangda Hardware Co.,ltd was established in 1999. Since then it has expanded and improved to become a leading manufacturer and supplier for full range of Hexagon Bolts & Nuts, Foundation Anchor Bolts, U Bolts, Stud Bolts, Pipe Clamps and Sag Rods. The Company supplies a comprehensive range of fasteners for the application in the marine, construction, as well as heavy and light industries. We always believe in satisfying our customers and meeting their requirements at all time. ...