Common metals and their alloys; metal building materials; transportable buildings of metal; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; ductwork; ductwork for process ventilation; pipes, tubes and hoses, and fittings therefor, including valves, of metal; metal pipes and tubes; ducts of metal; high vacuum ducting; ducts of metal for ventilating and air conditioning installations; ducts made of metal for trunking pipes for liquids and gases; ventilation ducts of metal; non-electrical metal ducting; metal flanges, flanged pipes of metal, flange transitions of metal; couplings for tubing; adaptors for pipes, bend pipes and branching pipes of metal; branch outlet fittings of metal; manifolds of metal for pipelines; clips of metal for cables and pipes; collars of metal for fastening pipes; connectors and joints of metal for pipes; couplings [joints] made of metal for pipes; junctions of metal for pipes; elbows and fittings of metal for pipes; metal valves for water pipes; steel and stainless steel pipes; pipe bends of metal and steel; slip ducts; cut-in branch pipes; branch dampers; metal hose fittings; clamps and hose clamps for pipes; dropout boxes for pipes; sound traps for pipes; duct reducers; terminal caps for ducting systems; transitions for ventilation pipes; spray cabinets of metal; straps for pipes of metal, pipe supports and stands for pipe supports of metal; extended adaptor pipes for machines; manual dampers for ducts; oil mist drainage ducts; nuts, bolts and fasteners of metal; clack valves and check valves of metal; draw-off valves, metal valves, regulators [valves] and regulating valves of metal, valve assemblies, all other than parts of machines; metal valves for controlling the flow of fluid in pipes, tubes and hoses, namely leaf valves; metallic stopping components for protection against explosions (other than parts of machines), in particular explosion protection valves, shut-off valves for explosion protection, and explosion-proof valves, manual and automatic blast-gates, spark traps; fire-protection valves of metal; wrought common metals, unwrought or semi-worked common metals, fasteners and meshes of common metal, slabs and wire of common metal, metallic wires (non-electric); manhole covers of metal; roofing plates and wall plates of metal; wall universal brackets; universal consoles for piping suspension.

Tubes being fitted parts of machines; adaptors for pipes [parts of machines]; clamp connectors for piping [parts of machines]; joints for pipes [parts of machines]; plastic pipes [fitted parts of machines]; joints for tubes, pipe joints [parts of machines]; collets being parts of machines; dampers [parts of machines]; hoods [parts of machines]; couplings for machines; drives for ventilation flaps; filtering machines, separators and centrifuges; air filters for mechanical purposes; dust removing and dust exhausting installations; dust separators; traps for dust [parts of machines].