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metal plugs; manually operated water-pipe valves of metal; manually operated metal butterfly valves; manually operated metal valves, couplings, flanges, and connecting fitting for manually operated metal valves for water-pipe applications

machine parts, namely, plugs, water-pipe valves, butterfly valves, pressure valves, pipe couplings and pipe flange for water-pipe applications

plastic plug, plastic water-pipe valves, plastic butterfly valves, plastic valve flanges and couplings for water-pipe applications, and plastic fasteners