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ZL-Y90 挖改液压凿岩机
Excavator Mounted Hydraulic Drill Rig
凿岩速度达到0.8-1.2米/分钟，不需要大空压机。ZL-Y90钻孔直径可达38-89mm,一次钻孔深度3.2米或6米。因此在大孔径的岩石上打孔，ZL-Y90是。
Drilling speed can reach up to 0.8-1.2m/min. Do not need big compressor, the drilling hole diameter of ZL-Y90 excavator mounted hydraulic is 38-89mm, it is the best choice for the big hole drilling.
