Building materials and parts of buildings, not of metal or not mainly of metal, namely, plates and panels, as well as support elements constructed from these plates or panels for interior construction and interior fitting, namely, wall elements in the nature of non-metal wall tiles, wall linings, ceiling elements in the nature of non-metal ceiling panels, ceiling linings, floors and floor plates in the nature of non-metal floor panels; wainscotings for building purposes, not of metal or not m...