... economic,easy move 3.High efficiency 4.Hydraulic dri Portable water well drilling rig AKL-L-180 Features:(1)AKL-L-180 ... ;(2)This machine is abroadly used in constructions of railway, water well, transportation, bridge, dam and so on.(3)In core drilling ... of small gourting hole and blast hole Main technology parameters: Drill depth (m)180,150,120,90,70,30Drilling diameter75,91 ...