built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts

Building elements of block or other shape for the construction of parts of buildings > built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts

Building elements of block or other shape for the construction of parts of buildings (of relatively thin form E04C2/00; structural elongated elements designed for load-supporting E04C3/00, e.g. columns or pillars E04C3/30; manufacture or material of building bricks, stones, or the like B28, C03, C04; paving elements E01C; general building constructions E04B, e.g. walls E04B2/00, floors E04B5/00, roofs E04B7/00, ceilings E04B9/00; structural elements specially designed for built-in conduit shafts E04F17/00; ; special elements for building ovens or furnaces F24B, F27D) > built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts