Manufactured from flexible graphite sheet adhesively bonded to a 0.002" (0.05 mm) thick glued SUS304 flat stainless steel sheet insert. 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