Well stem DZ40
Promulgator
：fansheng Time：2017-08-02
Geological engineering exploration type GK200
Drilling free clamp, wearable, non slip, Phi 42, Phi 50, Phi 60
Vertical shaft box assembly of XY-1A type 150 high speed drilling machine
Well stem DZ40
Hoisting gearbox XY-1, XY-1A, XY-1B, GK180
XY series drilling machine
XY-1B type low speed 150 pump with 160 pumps, geological engineering exploration
