6
Metal building materials, in particular metal building materials for roofs, walls and chimneys; components and accessories (of metal) for roof coverings, in particular sanitary fans, mainly with flexible tubes and aluminium cowls, aluminium sanitary fans; thermal adapters, mainly with base plates; aerial hoods, mainly aluminium aerial hoods; snow guard mounts, mainly aluminium snow guard mounts; pole holders, mainly aluminium pole holders; snow guard double pipe holders, mainly aluminium snow guard double pipe holders; climbing steps for roofs, mainly aluminium climbing steps for roofs; grates, mainly aluminium grates; extension grates, mainly aluminium extension grates; snow guards; snow guard round pipes, mainly aluminium snow guard round pipes; pipe connectors for snow guard round pipes, mainly aluminium pipe connectors for snow guard round pipes; aerial pass-through bricks, mainly with seals; metal roof tiles, mainly galvanised or copper; duct pans for solar installations, slope caps for roof ridges; roof windows, mainly colour-coated or copper; roof ridge clamps; protective bands for eaves; ventilator shafts for eaves; universal tower clamps
19
Building materials (non-metallic), in particular non-metallic building materials of all kinds for roofs, walls and chimneys, including finished parts, roofing tiles, stoneware pipes, fireclay pipes and isostatically pressed pipes and plates; roof ridge and hip ventilating elements of ceramic or plastic; components and accessories (not of metal or partly of metal) for roof coverings, in particular sanitary fans, mainly with flexible tubes and cowls, sanitary fans; thermal adapters, mainly with base plates of plastic; aerial hoods; snow guard mounts; pole holders; snow guard double pipe holders; climbing steps for roofs; grates; extension grates; snow guards; snow guard round pipes, pipe connectors for snow guard round pipes; aerial pass-through bricks, mainly ceramic aerial pass-through bricks with seals; pans of acrylic glass; duct pans for solar installations, mainly ceramic duct pans; slope caps for roof ridges; roof windows, mainly colour-coated; roof ridge clamps; protective bands for eaves; ventilator shafts for eaves; universal tower clamps