Packing and insulating materials; non-metallic gaskets for pipes and for pipe connections; non-metallic seals for pipes and pipe connections; sheets of graphite-based material for use as gaskets; non-metal gaskets and gasket materials in sheet form for use in static sealing; non-metal seals and gaskets for use in industry and the automotive industry, namely, for sealing flange joints, manhole and handhold covers, tube covers, boilers, heat exchangers, pressure vessels, pumps, compressors, valves, valve seats, bearings, O-rings, and other than for internal combustion or land vehicle engines and other than for use in machinery; non-metal seals and gaskets for household heating, refrigerating and ventilating installations; non-metal gaskets for automotive and truck use and industrial use, namely, engines other than land vehicle engines, heat exchangers; non-metal gaskets for use as a fluid tight seal in steam production and distribution, gas supply, potable water supply, high temperature applications, extremely aggressive media, petrochemical industry, chemical industry, power plants, food and pharmaceutical industry and automotive industry, other than for use in land vehicle engines; oil seals in the nature of packing and insulating material; washers of rubber or vulcanized fiber; sealant compounds for joints; pipe gaskets in the form of rings; graphite filler for gaskets in the nature of graphite packing for gaskets