国产人成精品香港三级在,国产欧美日韩精品第二区,国产欧美成人一区二区三区

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Introdution


It is small size and small weight, good for hand hold to drill, explosion-proof, variable speed, slight vibration, low noise, hole-drilling, stirring and bolting can be achieved by one machine. It is mainly used for hole-drilling and bolting on the wall of coal lane, half coal –rock lane and rock lane. The hardness should be f≤6.

Specification

 

 

 
 
Copyright:Shijiazhuang Coal Mining Machinery Co., Ltd. ICP:09037270
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