6 Elbows of metal for pipes; Manually operated metal valves; Metal drain pipes; Metal fuel oil hoses; Metal hoses for plumbing use; Metal pipe connectors; Metal pipe couplings; Metal pipe couplings and joints; Metal pipes and metal fittings therefor; Metallic pipes and tubes; Valves of metal other than parts of machines including those from alloy steel and titanium; Water-pipe valves of metal