100m Portable Pneumatic Hydraulic Small Electric Water Well .
. Find Complete Details about 100m Portable Pneumatic Hydraulic Small Electric Water Well Drilling Machine Kqd165,Horizontal Drilling Machine For Sale,Water Well Drilling Machine,Water Drilling Machine,Small Drilling Rig from Mine Drilling Rig Supplier or Manufacturer Zhengzhou Qugong Machinery Equipment Co.,.
Large scale Coal Mine Hydraulic Supporting Tool/coal Mine Roof .
This series of hydraulic prop, good stability, technical performance advantages prominent, high grade coal mining face will be the single support height from 2.5 meters to 3.5 meters, 3.5 meters below the coal mining can achieve one full height, while for the coal seam thickness of 4.5 m below provides end face and.