TUNNEL

Class [1]
Chemical Products

Chemical products and mineral products, all for use in industry; chemical products for use in boreholes, in oil wells, in gas wells, in water wells, and in geothermal wells; drilling fluids (muds); additives (including organic and inorganic substances of mineral or vegetable origin) for use in drilling fluids, in completion fluids and cements, and in workover fluids and cements, all for boreholes and wells; weighting materials for drilling fluids (muds); clays; filtration media for drilling fluids; mineral and chemical based additives consisting of filtration materials, sealants, lubricants, grouting material, and suspension and stabilizing agents for use in products and systems for the oil and gas industry; all of the aforesaid goods being for use in boreholes, in oil wells, in gas wells, in water wells and in geothermal wells.