Features Specifications:Double Jacketed Gasket  Double Jacketed Gasket is made from graphite,ceramic,asbestos,non_asbestos,etc.Filler covered with thin metal jacket,such as stainless steel,carbon steel,copper etc. By their sealing efficiently,provide outstanding resilience,while the metal jacket guarantees excellent sealing and protects the filler against pressure conditions,fluctuating temperatures and corrosion.