Non-metallic building materials, namely, asphalt, bitumen, aggregates, gravel, sand, artificial and natural stone; slag, namely, slag stone, slag-lime cement; macadam; bituminous coatings for soils, roads and roofing; binding materials and hardening materials in the nature of hydraulic binders, namely, cement and hydraulic lime and foamed bitumen for soils and roads; binding materials in the nature of hydraulic cement and hydraulic lime, emulsions, namely, asphalt-based emulsions, asphalt emu...