Metal pipe fittings; Metal pipes; Metal valves not being parts of machines; Metal clamps; Metal flanges; Metal screws; Metal thread adapters for use with hydraulic and pneumatic systems; Metal tubing; Stainless steel pipes; Stainless steels; Bottle caps of metal; Elbows of metal for pipes; Fittings of metal for pipes; Fittings of metal for flexible pipes; Tubes of stainless steel; Water-pipe valves of metal