Metal building materials, namely, metal drain pipes, metal drainage channels and metal drains for use in drainage installations in building construction; prefabricated building elements of metal in the nature of drain pipes, drainage channels and drains for the construction of installations, for the collection and drainage of water, surface water, waste water and other liquids; metal building materials, namely, metal drainage channels, metal drains, metal pipes, metal drainage grates, metal odour traps for drainage channels and drains and metal covers for drainage channels and drains for use in the chemical and pharmaceutical industries, the food industry and the luxury food, tobacco and alcohol industries; metal building materials, namely, metal drainage channels, metal drains, metal pipes, metal drainage grates, metal odour traps for drainage channels and drains and metal covers for drainage channels and drains for use for industrial buildings, exterior installations, balconies and terraces, kitchens and canteens, swimming pools, waste water treatment plants and landfill sites, and for interior furnishings; apparatus for supplying water, namely, metal water pipes, metal water drainage channels and metal water drains

Water purifying apparatus and machines of stainless steel or plastic for the food industry and the luxury food, tobacco and alcohol industries, namely, water purification tanks; Apparatus, being parts for used water and sewage treatment installations, in particular separators for the purification of liquids

[ Non-metal building materials, namely, non-metal drain pipes, non-metal drainage channels and non-metal drains for use in drainage installations in building construction; non-metal building material in the nature of drain pipes, drainage channels and drains for the construction of installations, for the collection and drainage of water, surface water, waste water and other liquids; non-metal building materials, namely, non-metal drainage channels, non-metal drains, non-metal rigid pipes, non-metal drainage grates, non-metal odour traps for drainage channels and drains and non-metal covers for drainage channels and drains for use in transportable buildings; non-metal building materials, namely, non-metal drainage channels, non-metal drains, non-metal rigid pipes, non-metal drainage grates, non-metal odour traps for drainage channels and drains and non-metal covers for drainage channels and drains for use in the chemical and pharmaceutical industries, the food industry and the luxury food, tobacco and alcohol industries; non-metal building materials, namely, non-metal drainage channels, non-metal drains, non-metal rigid pipes, non-metal drainage grates, non-metal odour traps for drainage channels and drains and non-metal covers for drainage channels and drains for industrial buildings, exterior installations, balconies and terraces, kitchens and canteens, swimming pools, waste water treatment plants and landfill sites, and for interior furnishings; apparatus for supplying water, namely, non-metal water pipes, non-metal water drainage channels and non-metal water drains ]