The article presents the specifications of the first diesel-driven roller-bit drilling rig of Russian design. The design features of the drilling rig are described, and the results of the pilot operation at one of the country’s opencast coal mines are provided.

Mining Industry Journal №6 (100) 2011, p.30


# Ali 2012-07-23 05:09
I want to get the price of a large amount you decide to send you the specifications even if you have a proxy I want to buy from the company directly if you agree send you the specifications

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