Metal building materials, namely, metal pipes and tubes; metal locking mechanisms for covers of drainage arrangements, namely, manhole covers; metal construction elements for house, land, road, and street drainage, namely, manhole covers, manhole rings, manhole filter inserts, drain gratings, pipes and tubes, shaped pipe and tube portions, service water and refrigerating pipe lines, ventilating ducts; all the aforementioned goods made predominantly of metal, in particular steel, high-quality steel and/or castings; components made from metal for civil engineering and sewerage purposes, namely, manhole covers, gully top gratings, debris catchers for manhole covers, debris catchers for drain channels, debris catchers for yard flows, debris catchers for sinkable street boxes, drainage channels, drainage channel gratings, surface boxes; replacement parts of the aforementioned goods

[Apparatuses and instruments for heavy-current engineering, namely, converters, apparatuses and instruments for light-current engineering, particularly for communication, high-frequency and regulating engineering, namely, digital signal processors, converters; remote controls for locking devices for locking covers of drainage arrangements; replacement parts of the aforementioned goods; batteries]

[Separators for the cleaning and purification of air, gases, and liquids; plumbing fittings, namely, pipe cocks and faucets; air and water filters as parts of domestic or industrial installations; replacement parts of the aforementioned goods]

[Non-metal building materials, namely, cement, earthenware, and sandstone pipes and tubes; plastic, cement, concrete, and reinforced concrete construction elements for house, land, road, and street drainage, namely, prefabricated manhole rings and covers, manhole filter inserts, non-metal gratings, non-metal pipes and tubes, shaped pipe and tube portions, service water and refrigerating pipe lines, non-metal ducts; components made from stoneware for civil engineering and sewerage purposes, namely, manhole covers, gully top gratings, debris catchers for manhole covers, debris catchers for drain channels, debris catchers for yard flows, debris catchers for sinkable street boxes, drainage channels, drainage channel gratings, and surface boxes; components made from plastic material for civil engineering and sewerage purposes, namely, manhole covers, gully top gratings, debris catchers for manhole covers, debris catchers for drain channels, debris catchers for yard flows, debris catchers for sinkable street boxes, drainage channels, drainage channel gratings, and surface boxes; replacement parts for the aforementioned goods]