... of rubber (non-asbestos rubber sheet,non-asbestos sheet,gasket material ,rubber product ,composite sheet, rubber Sheet(rubber product ... special non-asbestos heat-resisting Fibre, heat-resisting packing material and nature rubber compound heating and compression molding ituses: ... sealing material in the joints of pipeline;Working pressure : 1.0-8.5 Mpa ,Working temperature : 150-550 Specification grade ...