Accessories of plastic for irrigation pipelines; articles of rubber for use in connecting pipes; articles of rubber for use in sealing pipes; articulated pipe connectors; casings of rubber for pipes; casings of synthetic rubber for pipes; caulking compounds for sealing pipe threads; caulking compounds for use in preventing leakage from pipes; chemical compositions for lining pipes to prevent leaks; chemical compositions for lining pipes to repair leaks; chemical compositions for sealingly adhering together pipe joints; coating materials for insulating pipes; collars of rubber for fastening pipes; compressed air pipe fittings, not of metal; connection pipes, not of metal (parts of machines); connectors, not of metal, for pipes and hoses; couplings (joints) made of non-metallic materials for pipes; couplings of plastic for pipes; fibre-reinforced pipes for use as cable ducts; fibre-reinforced pipes for use as pipe casings; fibre-reinforced pipes for use as pipe sleeves; fibre-reinforced tubes for use as pipe casings; fibre-reinforced tubes for use as pipe sleeves; fire collars and wraps containing fire resistant sealing, packing or insulating materials, for use with pipes; fittings (non-metallic) for flexible pipes; flexible connectors for splicing pipes; hose pipes made of rubber; hose pipes made of textile materials; inflatable articles for sealing pipes to allow cutting; inflatable articles for sealing pipes to allow welding; insulation for pipes; insulation materials for pipes; insulations of synthetic material for the thermic protection of pipes; jackets (insulating) for pipes; joint packings for pipes; junctions, not of metal, for pipes; machine couplings (pipe), not of metal; manifolds, not of metal for pipelines; non-metallic connecting apparatus for pipes; non-metallic connectors for pipes; non-metallic coupling sleeves for pipes; non-metallic couplings for flexible pipes; non-metallic couplings for pipes; non-metallic elbow joints for flexible pipes; non-metallic fittings for pipes; non-metallic flexible corrugated pipes (other than for sanitary installations); non-metallic flexible hose pipes; non-metallic flexible hose pipes made of plastics materials; non-metallic flexible hose pipes made of rubber materials; non-metallic flexible pipes (other than parts of sanitary installations); non-metallic frames for air pipes; non-metallic frames for water pipes; non-metallic insulated pipe jacket muffs; non-metallic insulated pipe jackets; non-metallic insulated pipes; non-metallic joint connectors for pipes; non-metallic joints for pipes; non-metallic junction pipes (other than parts of machines, engines or sanitary installations); non-metallic junctions for pipes (other than parts of machines, engines or sanitary installations); non-metallic pipe connections; non-metallic pipe couplings; non-metallic pipe extensions; non-metallic pipe fittings (junctions); non-metallic pipe unions; non-metallic pipes for use with pressurised fluids; non-metallic sealing rings for pipe fittings; non-metallic seals for gas pipes; non-metallic seals for pipes; non-metallic semi-rigid pipes for use with pressurised fluids; pipe clamps of rubber; pipe clips of rubber; pipe end protectors made of plastics materials; pipe end protectors made of rubber materials; pipe flanges made from synthetic materials; pipe flanges of plastic; pipe jointing compounds for preventing leakage; pipe jointing compounds for preventing rusting; pipe jointing compounds for sealing cracks; pipe jointing compounds for sealing pipe threads; pipe muffs, not of metal; pipe outlets, not of metal; pipe sealing compositions; pipe support sleeves (rubber); pipe thread tapes for sealing; pipe wrappings for insulation purposes; pipe wrappings of rubber for protective purposes; pipes made of synthetic flexible material; plastic elbow bends for pipes (other than parts of sanitary installations); plastic pipe slides to accommodate pipe expansion; plastic pipes for transporting compressed air; plastic sheets for insulating pipes; reinforcing fibres, not of metal for pipes; reinforcing materials, not of metal, for pipes