Stud Bolt and Nut, Copper Pipe Tube, Spiral Wound Gasket manufacturer / supplier in China, offering Blue PTFE Oval Ring Joint Gasket for High Pressure/Temperature Rtj Flange, IX 150/200/250/350/500 Ring Gasket for Water and Waste, ASME B16.20 ISO9001 Spiral Wound Gaskets and so on.