Plastic non-flexible pipes for plumbing purposes; rigid plastic pipes for water; rigid pipes, not of metal, for building; rigid pipes and valves for water-pipes therefor, non-metallic; street gutters, not of metal; plastic conduits for drainage; drain gullies, not of metal; non-metal sump reservoirs for use in construction of basement waterproofing systems; drain pipes, not of metal; valves being drain traps, not of metal or plastic

tubes of metal