Manufactured from flexible graphite sheet adhesively bonded to a 0.002" (0.05 mm) thick glued SUS316 flat stainless steel sheet insert. Recommended to use in pumps, fittings, gas, offshore, waste gas, pipelines. This item is suitable for making: Flange Seals. Pipeline seals, Valve seals, Exhaust seals, Graphite gaskets, Heat shields And all Seals Gaskets The dimensions of the standard sheets: Whatsapp:86 13566083951 Size: 1000X1000mm,1500X1500mm,1000X500mm Thickness: 1.0mm ~ 4.0mm