Stud Bolt and Nut, Copper Pipe Tube, Spiral Wound Gasket manufacturer / supplier in China, offering Type D/E/F Flange Isolating Gasket for Low/High Pressure Industry Flange, Type F/E/D Flange Insulating Gasket for Industry Piping System, Carbon Steel Mild Steel 25.4*25.4*1.6 mm Cold Rolled Square Rectangular Tube and so on.