Flexible pipes (parts of sanitary installations); Non-metallic flexible pipes (parts of sanitary installations); Non-metallic pipes (parts of sanitary installations); Outflow pipes being parts of sanitary installations; Pipes (parts of sanitary installations); Pipes being part of sanitary installations; Plastic elbow bends for pipes (parts of sanitary installations); Plastics pipes (parts of sanitary installations); Pneumatic apparatus for controlling pressure in gas pipes; Pneumatic apparatus for controlling pressure in water pipes; Pre-insulated bonded pipes for sanitary installations; Pressure controllers (regulators) for gas pipes; Pressure controllers (regulators) for water pipes; Pressure relief valves (safety apparatus) for gas pipes; Pressure relief valves (safety apparatus) for water pipes; Regulating accessories for water or gas apparatus and pipes; Regulating accessories for water or gas apparatus and pipes; Regulating and safety accessories for gas pipes; Regulating apparatus being parts for water pipes; Regulating apparatus for gas pipe installations; Regulating apparatus for gas pipes; Regulating fittings for water pipes; Regulatory fittings for water pipes; Rigid pipes for building (parts of sanitary installations); Rigid pipes of plastics (parts of sanitary installations); Safety accessories for water or gas apparatus and pipes; Safety apparatus for pipes carrying gas; Safety apparatus for pipes carrying water; Safety fittings for gas pipes; Safety fittings for water pipes; Safety valves for gas pipes; Safety valves for water pipes; Sanitary drain armatures for drip pipelines; Stop cocks being safety apparatus for gas pipes; Stop cocks being safety apparatus for water pipes; Stop valves being safety apparatus for gas pipes; Stop valves being safety apparatus for water pipes; T pieces for pipes (parts of sanitary installations); Water pipes for sanitary installations (parts of); Water-pipes for sanitary installations

Branching pipes, not of metal; Down pipes of non-metallic materials; Drain pipes, not of metal; Non-metallic air pipes for buildings; Non-metallic drainage pipes; Non-metallic fire protection sleeves for use in pipe ducts; Non-metallic fire resistant collars for pipes; Non-metallic gas pipelines; Non-metallic insulated pipes for water; Non-metallic oil pipelines; Non-metallic pipes (drain); Non-metallic pipes for building purposes; Non-metallic pipes for high temperature use in transferring molten material; Non-metallic pipes for roof drainage installations; Non-metallic pre-insulated bonded pipes for building; Non-metallic rigid pipes; Non-metallic rigid pipes for construction purposes; Non-metallic vent pipe terminals for use in building; Non-metallic water fittings incorporating flow control (parts for water pipes); Non-metallic water pipes (other than parts of sanitary installations); Plastic pipes (rigid) for water; Rigid channels for pipelines (non-metallic); Rigid non-metallic pipes for building (other than parts of sanitary installations); Rigid pipes (not of metal); Rigid pipes of plastics (other than parts of sanitary installations); Underwater rigid pipelines, not of metal; Water regulating valves (not of metal or plastic) for water pipes; Water-pipes, not of metal