습식 강한 석탄 전기 드릴 ZM12A 전기석탄드릴 기계 물 형태

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Wet Strong Coal Electric Drill​ Keyword:electric hand drill for coal;water type electric coal drill Product Introduction This is a hand-held drill that can be used in in various mines such coal mine, marble mine, metal mine and rock layer. With the explosion-proof structure it can be safely used for mine where methane and coal dust explosion. The water injection device can reduce dust. The machine is matched with the coal drill pipe: specification 28mm/32mm43mm *1m /1.5m/2m