Stud Bolt and Nut, Copper Pipe Tube, Spiral Wound Gasket manufacturer / supplier in China, offering Blue PTFE R/Bx/Rx/IX/Hx/Ax/Oval/Octagonal Ring Joint Gasket for Piping, Blue PTFE Oval Ring Joint Gasket for High Pressure/Temperature Rtj Flange, IX 150/200/250/350/500 Ring Gasket for Water and Waste and so on.