Metal building materials, namely, metal panels, metal bars and sheet metal for construction; ceiling and wall panels of metal; acoustic panels of metal for ceilings and walls; fireproof panels of metal for construction; wall elements, namely, metal wall tiles; partitions, namely, metal partitions for building; wall components, namely, building wall framing primarily of metal and wall linings of metal for building; shaped metal sections, namely, metal profiles for arranging devices on and in w...