Showing 11-15 of 27 items.

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The elements of mine support

TRADE-INDUSTRIAL COMPANY “STEAN”, Ltd.

A mine support is an artificial structure which is erected to prevent the possibility of collapse of surrounding rocks in mine workings as well as in the construction of mines, tunnels and subways and other underground objects. The structure of the support depends on the area and shape of the cross section of the mine workings, the magnitude and nature of the rock pressure, service life and other factors.

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The mine ferroconcrete tightening

TRADE-INDUSTRIAL COMPANY “STEAN”, Ltd.

A tightening mine reinforced concrete - constructions of mine workings

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The metal latticed grid-tightening

Donetsk electrotechnical plant, State Enterprise

Tight metal grating ZMR.000 is designed to support the enclosing rocks of mine workings of coal mines fixed with frame, anchor and mixed supports.

The tightening is made of low-alloy thermally untreated wire with a diameter of 5.5 mm in accordance with GOST 3282 or from round wire according to TU 14-15-212-89, GOST 2590 with contact spot welding.

The tightening has rectangular cells no more than 50х50 mm along the axes of the wire. Carrying capacity not less than 20 kN / m².

Tightening weight is 17,19 kg.

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Elements of pipelines

Donetsk electrotechnical plant, State Enterprise

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Soft start devices UVPPD

Donetsk electrotechnical plant, State Enterprise

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