Pneumatic Hydraulic DTH Crawler Rock Drilling Rig for Mining Zhejiang Zhongnuo Intelligent Machinery Co., Ltd. Base Info Description Model NoDiesel Engine Model and PowerZGYX-41550Kw YCD4R12T-70ZGYX-415-159Kw YCD4R22T-80 Pre：Energy-Efficient Crawler Surface DTH Drilling Rig for Rock Next：Pneumatic and Hydraulic DTH Drilling Equipment with Dust Collector
