Metal pipe fittings; Fittings of metal for pipes; Metal fitting clamps; Metal fitting nuts; Metal hose fittings; Metal fittings for metal pipeline manifolds; Metal fittings for metal tubes; Fittings of metal for flexible pipes; Fittings of metal for rigid pipes; Corrosion-resistant metal overlays and alloys for fittings, steel plates, flanges, piping components; Manually operated metal valves; Water-pipe valves of metal; Metal valves not being parts of machines; Metal multi-functional valves,...