Spiral Wound Gasket, PTFE Tape, PTFE Gasket manufacturer / supplier in China, offering Machinery Seal ASME B16.20 Rtj Metal Rx R Bx Ring Joint Gasket, Round Oval/Octagonal Rtj Ring Joint Gasket for All Flange Types and Sizes, R11~R120 Size Metallic 304, 316, 321, 317, Soft Iron, Carbon Steel ASME B16.20 Rtj Ring Joint Gasket and so on.