... 140m, multifunctional, with crawler, move faster, moblie drilling rig type.1.Main Characters:1).The power head has high power ... hole,various types of engineering tunnel pipe shed .3. Technical Data: Hole diameter(mm)Φ150~Φ250Hole depth (m)100~ ... 2100*1950 Walking wayby crawler belt, crawler drilling rig type Remark:Technical specifications are subject to change without prior notice and incurring ...