sealing washer:A sealing gasket, is a kind of mechanical, equipment, piping, ... internal and external, the role of sealing material. The gasket is metal or non metal plate material, the cutting, ... gasket and non-metallic sealing gasket. The metal has a copper gasket, stainless steel gasket, iron gasket, aluminum gasket, etc.. Non metallic asbestos gasket, non asbestos gasket, paper gasket, rubber gasket ...