TW TECNIWELL

Silos of metal for storing powders of cement, bentonite and other materials

Pumps as parts of machines, motors and engines; pump installations comprised of triplex pumps; pumps for mixtures of cement, drilling mud, water, oil and special fluids, namely, drilling and grouting fluids; grout material mixing machines comprising triplex pumps for the pumping thereof; drilling machines; drilling rods being parts of drilling machines; boring tools for geotechnical engineering operated by machines; core drilling bits