Type: Spiral Wound Gasket,Ring type joint gasket, Flat gasket, Asbestos free gasket, Insulation gasket Standard: ASME B16.20,B16.21,ASME B16.5/B16.47 Material: Graphite, PTFE/Teflon,CS,SS304,SS316,monel alloy, soft iron,G10,G11... Specification: 1/2”-48”(We also can produce as per client drawing for special size.) Class rating: CL150-CL2500,3000PSI,5000PSI,10000PSI,PN2.5,PN6,PN10,PN25,PN40,PN63,PN100 Surface treatment: Oiled coated to prevent rust, galvanized Marking: As per standard & customer's requirements Packing: By carton or plywood box Application: Will be used for seal between flanges to prevent leakage of air and/or liquid, which were widely used in oil and gas industry, chemical industry, water convey, shipping building