manually operated metal valves, namely, irrigation valves; valves of metal, other than parts of machines; water-pipe valves of metal, namely, check valves, pressure reducing valves, temperature relief valves, and shut-off valves
Metal Goodsautomatic fire protection valves; automatic valves for controlling the flow of water
Electrical and Scientific Apparatusplumbing and water control and management fittings, namely, ball valves, irrigation valves, pressure reducing valves, temperature relief valves, pressure relief valves, and back flow preventers; strainers for water lines; temperature mixing valves
Environmental Control Apparatus