VENT-SCREEN

GOODS MADE OF METAL, NAMELY PROFILE WIRE FILTERS MADE OF FINE STEEL, WITH OR WITHOUT PERFORATED TUBE BASE, FOR THE SAND-FREE CONVEYING OF WATER, CRUDE OIL AND NATURAL GAS

SCREENING MACHINES AND THEIR PARTS, NAMELY SCREENS AND FILTERS MADE OF STEEL, NAMELY MADE OF FINE STEEL, NAMELY CONSTRUCTED WITH SELF-SUPPORTING PROFILE WIRES, SCREENS AND FILTERS MADE OF STEEL WITH PRECISION APERTURE WIDTHS

CONSTRUCTIONS ABOVE GROUND, BELOW GROUND AND ENGINEERED CONSTRUCTIONS, EXCAVATION, PIPE LINE LAYING, WELL WORK AND EARTH BORING WORK, GEOLOGICAL EARTH WORK, NAMELY CLEANING OF BORE HOLES AND THEIR SURROUNDING AREAS OF EARTH FORMATION FOR RESTORING THE ORIGINAL PERMEABILITY, INSTALLATION AND INSERTION OF SCREENS AND FILTERS, NAMELY FOR SCREENING MACHINES

SERVICES OF AN ENGINEER, OF A PHYSICIST, A CHEMIST, A GEOLOGIST; SERVICES OF A PHYSICS, A CHEMICAL AND A GEOLOGICAL LABORATORY, NAMELY MEASURING AND RECORDING BY MEANS OF MEASURING INSTRUMENTS OF POROSITIES AND PERMEABILITY IN GEOLOGICAL FORMATIONS, OF THE FLOW AND DISTRIBUTION OF THE CONVEYING RATE IN THE SUPPORTING AREA OF WATER, CRUDE OIL AND NATURAL GAS, AS WELL AS FOR CONSOLIDATED AND NON-CONSOLIDATED GEOLOGICAL FORMATIONS