50m Depth Diesel Rock Portable Rotary Water Well Drilling Rig Machine Backpack R......
The Type HY-50H rig is a high, medium and low speed rig with hydraulic feed. Com......
xy-200 is a deepwater well drilling rig with a drilling depth of 200 meters. It ......
The xy-1a is based on the xy-1 low-speed drilling rig, upgraded to an 18-horsepo......