Branching tubes of metal for pipelines; Collars of metal for fastening pipes; Corrosion-resistant metal overlays and alloys for fittings, steel plates, flanges, piping components; Metal junctions for pipes; Metal penstock pipes; Metal pipe fittings for compressed air pipes; Metal pre-rinse, wash down spray nozzles for commercial and industrial use; Metal, wash down spray nozzles for commercial and industrial use; Pipework of metal; Rotating junctions of metal for pipes; Valves of metal, other...