Screw tubing for drilling and concrete working control of piles of foundation and the equipment necessary for its implementation
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Hydroelectric dam manager of ecosystems in a hydraugraphic basin
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Hydraulic power generator for driving electric generators to produce electricity, has vertical rotating shaft held at each end of hydraulic wheel by bearing that is fixed on upper and lower walls of box
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Mechanically welded steel connector for building site, has base plate with steel plate hollowed in its center and receiving ends of chords, and bracket assembly fixed laterally on sleeve and horizontally on base plate by cords
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Probe for test loading of the soil by expansion of a cylinder - means of assembly and implementation
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Under=pinning method for existing structure exposed by river bed
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Method for supporting the walls of a trench (ditch) and device for implementing it
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DEVICE FOR INJECTING AND CONTROLLING THE CONCRETE WORKING OF PILES WITH HOLLOW TARRIES.
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Lightweight radier and its manufacturing method.
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Method and device for sheeting walls
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Telescopic shielded showcase
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Removable interior tubing for hollow auger for molding of bore piles
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Auger drive device for drilling and concreting piles in the ground and method for their production
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Delete on spots, and devices for its implementation
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Radier on pegs for the seat of light buildings, method and device for the production thereof
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Hollow drill for drilling and casting concrete piles - contains concentrically spaced inner and outer cylinders with helical blade on outer surface
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Hollow auger for drilling when forming concrete piles
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Driven cast in place stub pile - is formed in thin-wall tube driven by internally sliding monkey of same length and which displaces soil
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Method for the production of piles cast in the ground and hollow auger for implementing the method
