ホーム > Term: roof drill
roof drill
Various hydraulically operated mechanized machines designed to install roof bolts. Two workers can install up to 200 bolts per shift. Units are available in both standard and special design to satisfy requirements in different mines.
- スピーチの一部 noun
- 産業/ドメイン 炭鉱
- カテゴリ 炭鉱全般; Mineral mining
- Government Agency: USBM
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作成者
- ed.young
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(V.I.P) 21084 ポイント - 100% positive feedback
(Milwaukee, United States)
