PTFE envelope gasket

PTFE envelope gasket are use for type of static seal. PTFE envelope gasket is composed of elastic materials. such as PTFE envelope gasket composed of compressed non-asbestos sheet and a PTFE envelope cove,PTFE envelope gasket composed of rubber and a PTFE envelope cove,PTFE envelope gasket composed of Ceramics and a PTFE envelope cove,etc.PTFE envelope gasket has superior properties against chemical (not affected by all chemicals except molten alkali metal and fluorine at