ZDY2-300LM Full Hydraulic Drilling Rig with Double Working Arms
Aiming at the rapid and precise construction requirements for a large number of directional pre-borehole of roof cutting and pressure relief in coal mines, ZDY2-300LM full hydraulic drilling rig with double working arms is developed by means of variable amplitude mechanism with multiple degrees of...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Safety in Coal Mines
2020-09-01
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| Series: | Meikuang Anquan |
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| Online Access: | https://www.mkaqzz.com/cn/article/id/7156 |