Branching pipes of metal; Ducts of metal for air-conditioning installations; Fittings of metal for pipes; Junctions of metal for pipes; Metal barrels; Metal casks; Metal taps for beer kegs; Metal taps for casks; Metal air conditioning ducts; Metal expanding sleeves for affixing screws; Metal expansion joints for piping and ducting; Metal junction sleeves for non-electric cables; Metal pre-rinse, wash down spray nozzles for commercial and industrial use; Metal storage tanks; Metal, wash down s...