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      A belt soil retaining plate mechanism of disc bit

      A belt soil retaining plate mechanism of disc bit

      Rotary digging rock bulldozing bit

      Rotary digging rock bulldozing bit

      Rotating drill screw expansion device of the hydraulic control system

      Rotating drill screw expansion device of the hydraulic control system

      Rotating drill rotating device hydraulic converter

      Rotating drill rotating device hydraulic converter

      Rotating drill with a universal joint

      Rotating drill with a universal joint

      Mining emulsion proportioning device automatically

      Mining emulsion proportioning device automatically

      Concrete pouring pile construction with mud purification device

      Concrete pouring pile construction with mud purification device

      Which has the function of mud making and remote platoon slurry filling pile of mud

      Which has the function of mud making and remote platoon slurry filling pile of mud

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