6
Roof components of metal; Metal roofing; Self-assembling and portable building elements, mainly made of metal; Self-assembling and portable house structures, mainly made of metal; Metal frames for buildings; construction elements made of metal; Building element systems, mainly made of metal; Structures and transportable buildings of metal; Building structures of metal; Frames of metal for building; Metal building element frames
19
Non-metal roofing; Frame structures, not of metal; Self-assembling and portable building elements, not of metal; Self-assembled and portable buildings, mainly made from non-metal construction materials; Self-assembled and portable building elements, not of metal; Self-assembled and portable building elements, mainly made from non-metal construction materials; Self-assembled and portable house structures, not of metal; Self-assembled and portable house structures, mainly made from non-metal construction materials; Building frames, not of metal; construction elements of non-metallic materials; Building element systems, not of metal; Building element systems, mainly made of building materials other than metal; Structures and transportable buildings, not of metal; House structures, not of metal; Framework, not of metal, for building; Frameworks of building elements, not of metal; Prefabricated houses [kits], not of metal; Roof elements, not of metal