SD220L Crawler full hydraulic pump reverse circulation drilling rig is mainly used for drilling vertical pile foundations in large-diameter, pebble, ....
ARC-500 introduction The air reverse circulation drilling rig is a new, efficient, and environmentally friendly crawler drilling rig that adopts the ....
SQ-200 reverse circulation drilling rig can be used for low and middle hardness formation of high-speed rail, bridge, wind power, pylons foundation .....
Back cycle series multi-function drilling rig is a new type, high efficiency, environmental protection, multi-function track drilling rig, it adopts ....