Stud Bolt and Nut, Copper Pipe Tube, Spiral Wound Gasket manufacturer / supplier in China, offering Carbon Steel/Stainless Steel/Monel/Duplex Ss PTFE/Graphite/Mica Filler Spiral Wound Gasket, IX Seal Ring Gasket for Flange, SS316L/CS/SS304/Ss321/Ss347 Ring Graphite Filler Spiral Wound Gasket for Pipe and so on.