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Installation of roof bolts in coal open pits
Use of bolts for supporting slopes of benches in coal mine in Kuznetsk basin.
Installation of roof bolts in coal open pits
Use of bolts for supporting slopes of benches in coal mine in Kuznetsk basin.
Installation of roof bolts in coal open pits
Shtangovaya krep na ugol'nykh razrezakh
Shirokov, A.P. (Autor:in)
Gornyi Zhurnal ; 132
1957
2 pages
Aufsatz (Zeitschrift)
Russisch
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