POWELSAND

Chemical products used in industry, science, agriculture, unprocessed artificial resins, unprocessed plastics; fire extinguishing compositions; catalysts, adsorbents, catalyst carriers, chemical additives and chemical reagents other than for medical or veterinary use, chemical products used for drilling, extraction, production, treatment of gas, petroleum, water and fluids

Building materials, not of metal; non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments not of metal; buildings, not of metal; building glass; concrete; cement; sands; silicas

Construction; construction information; construction consultation; building construction supervision; installation, maintenance and repair of machines for drilling, extraction, production or treatment of gas, petroleum, water and fluids; shipbuilding; drilling works; drilling work supervision