11 plumbing fittings, namely, valves, traps, cocks; dripper irrigation systems, comprised of valves, regulators, back flow preventer; plumbing supplies, namely sink strainers; steam valves, manually operated plumbing valves, plumbing fittings, namely valves, draught valves for heating apparatus, faucets, mixer faucets for water pipes, water-pipe valves of metal, valves drain traps of metal, valves drain traps of plastics