6
Pipes and tubes of metal; Sewer pipes of metal; Tubes of metal; Clips of metal for tubes; Couplings of metal for tubing; Flexible tubes of metal; Elbows of metal for pipes; Cast iron pipes; Steel tubes; Junctions of metal for pipes; Adaptors for pipes [metal]; Wall hooks of metal for pipes; Pipe nuts of metal; Pipe extensions of metal; Racking [structures] of metal for supporting tubes; Rotating junctions of metal for pipes; Clips of metal for cables and pipes; Metal pipe supports; Tubes of steel, including those rolled, peeled or ground; Branching tubes of metal for pipelines; Metal hoses for plumbing use; Metal hoses for agricultural use; Discharge pipes (Metal -) for building installations; Aluminum composite tubing for use in the manufacture of bicycle frames; Pipes of metal including those from alloy steel and titanium; Metal pipes for liquid and gas transfer; Tubes of copper alloys; Pipe jackets of metal; Pipe spacers of metal; Metal gas pipe parts; Drain traps [valves] of metal; Fittings of metal for compressed air ducts; Hinges of metal for the fixing of pipes; Winding spools of metal, non-mechanical, for flexible hoses
7
Pipe laying machines; Boring robots for repairing the interiors of pipes; Reels, mechanical, for flexible hoses; Tube conveyors, hydraulic; Tube insertion machines for industrial use; Tube cutting instruments [machines]; Tubing mills [for metalworking]; Swaging machines for use in the assembly of hoses; Swaging machines for use in the assembly of hydraulic hoses; Pipes [fitted parts of machines]; Metal branching pipes [parts of machines]; Joints for pipes (metal -) [parts of machines]; Pigs for cleaning pipes; Cast iron parts for pipes [parts of machines]; Tubes being fitted parts of machines; Automotive exhaust pipe; Boiler tubes [parts of machines]; Copper tubes [parts of machines]; Tube reamers [parts of machines]; Exhaust pipes for land vehicles; Adaptors for pipes [parts of machines]; Vacuum cleaner hoses; Hoses (Metal -) for use in hydraulic systems in machines; Hoses (Non-metallic -) for use in hydraulic systems in machines; Feed pipes for carburettors
11
Pipes [parts of sanitary installations]; Elbow bends (plastic -) for pipes [parts of sanitary installations]; Flexible pipes being parts of shower plumbing installations; Flexible pipes being parts of sink plumbing installations; Cast iron parts for pipes [parts of sanitary installations]; Boiler pipes [tubes] for heating installations; Supports adapted for use with solar heating tubes; Waste pipes for bathtubs; Flexible strip wound pipes of metal [parts of sanitary installations]; Waste pipes for sanitary installations
12
Truck air brake hoses; Hose carts
17
Flexible hoses, not of metal
37
Pipe laying; Services for the repair of pipes; Maintaining and repair of drain pipes; Maintenance and repair of pipes used in industrial equipment; Replacement of exhaust pipes; Tube maintenance services; Advisory services relating to pipe laying