Plumbing fittings, namely, bibcocks being faucets with bent nozzles fixed at the end of a pipe; plumbing fittings, namely, stop cocks being valves, stop valves, pressure relief valves, and taps for regulating the flow of gas; Valves as part of sanitary facilities; Safety accessories for gas pipes, namely, safety valves being reverse flow check valves and Stop cocks being valves for gas pipes; Safety pressure relief valves for gas pipes; Regulating and safety accessories for water and gas installations, namely, metered valves; heating boilers; Filters and filtering devices to filter gas used in heating boilers; Gas fired water heaters; Gas stoves; Pressure relief regulators, namely, pressure relief valves for gas installations being gas powered heating and cooling installations

Flexible pipes, tubes, hoses, and fittings therefor, not of metal; Fittings, not of metal, for rigid pipes; Non-metallic couplings for pipes; Non-metallic pipe fittings, namely, pipe extensions; Non-metal pipe couplings and joints; Insulation jackets for industrial pipes; Casings of rubber for tubes; Pipe muffs, not of metal; Non-metallic couplings for flexible pipes; Rubber tubes and pipes; Flexible hoses, not of metal; Flexible plumbing pipes of plastic; Non-metal seals for gas pipe connections; Nonmetallic seals for gas pipe connections for preventing leakage of gas; Flexible plastic pipes for conveying natural gas; Non-metal flexible tubes for the conducting of gases

Rigid plastic pipes for plumbing purposes; Rigid pipes, not of metal, for building; Rigid water pipes and water pipe valves therefor, non-metallic; Ducts for trunking pipes for gases, not made of metal