11 Heating systems for residential and commercial buildings comprised of boilers, valves, pipes, manifolds, solar panels, control panel, switches and electrical wire, all sold as a unit; Manually-operated plumbing valves; Pipe fittings, namely, cocks, traps, valves; Pipe fittings, namely, shower control valves; Plumbing fittings, namely, valves; Regulating accessories for water supply, namely, metered valves; Steam valves; Valves being parts of sprinkler systems; Valves for air conditioners; Parts of valves, such as OEM castings of Stainless Steel; Parts of valves, such as OEM castings of carbon steel; Parts of ball valves, namely, valve balls of stainless steel; Parts of ball valves, namely, valve balls of carbon steel; Parts of ball valves, namely, valve balls of forged steel; Parts of valves, namely, flanges of stainless steel; Parts of ball valves, namely, flanges of carbon steel; Parts of ball valves, namely, flanges of forged steel