coal cutting pick
... coal cutting machine 截煤机 coal cutting pick 挖煤镐 coal drier 煤干燥器 ...
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用挖煤镐铲出后，85%的煤会被粉碎成50毫米尺寸大小。
After picking with coal pick, 85% of the coal wil be crushed to 50mm size.
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