||Number of Company
||Manufacture of wooden windows, doors and their frames and thresholds as well as wooden stairs, handrails, porch, railings, etc.
||Manufacture of wooden prefabricated houses and wooden portable houses
||Brokers making wholesale trade of building material on a fee or contract basis (except rebar and lumber)
||Wholesale trade of prefabricated metal structures, bridges, bridge parts, towers, lattice masts, construction elements, other structures and structural elements
||Wholesale trade of construction materials such as cement, plaster, mortar, limestone, mosaic, etc.
||Wholesale trade of construction materials such as brick, tile, briquette, flagstone, etc.
||Wholesale trade of construction materials such as stone, sand, gravel, clay, kaolin, etc.
||Wholesale trade of metal doors, windows and their frames and door thresholds
||Wholesale trade of wooden doors, windows and their frames and door thresholds
||Wholesale trade of concrete, cement or artificial stone prefabricated buildings, construction materials and other products