79084744
May 25, 2010
Jun 14, 2011
Non-metallic building materials, namely, natural and artificial stones; shaped parts and finished parts of concrete and reinforced concrete, namely, concrete blocks for walls and supporting walls, concrete paving blocks, and concrete slabs; cast stones, in particular concrete blocks for walls and supporting walls; and non-metallic building materials, namely, spacers made of concrete, wood, paper, plastics or other organic materials for the laying of spaced concrete slabs
Nonmetallic Building Materials