6 Adaptors or connectors for pipes; air pipes; apparatus for attachment to pipes; clamp connectors of metal for pipes; clamp connectors for pipes for central heating installations; clamps or clips for cables and pipes; coated aluminium pipe fittings; collars of metal for fastening pipes; connection pipes; couplings; flanges; hinges; hydraulic connectors; connectors for pipes being parts of machines; connectors for pipes being parts of sanitary installations; connectors for pipes being parts of heating installations; gas pipe parts and connectors; valves for controlling the flow of liquids or gases in pipelines; connector anchorages; connectors or fittings for pipes for joining or terminating hydraulic tubing, pipework and hoses; pipes, tubes or fittings for heating purposes; connectors for pipes, tubes or fittings for heating purposes.
8 Hand-operated tools for use with pipes or tubes.
11 Pipes, tubes or fittings for sanitary purposes; connectors for pipes, tubes or fittings for sanitary purposes; radiator tails; apparatus for allowing radiators to be swung away for walls; tank connectors.
17 Non-metallic connectors for pipes or tubes; expansion connectors; hydraulic connectors; joint connectors, joint connectors for pipes being parts of sanitary installations; tubing connectors for fuel lines.
19 Pipes, tubes or connectors for scaffolding purposes.