hydraulic drilling rig for sale
2.Unloading water well drill rig drill pipe threaded should observe the following: the decentralization of the drill pipe to slow motion, flat, hook, can not loose too much, do not start the turntable fierce co-clutch.
2.Unloading water well drill rig drill pipe threaded should observe the following: the decentralization of the drill pipe to slow motion, flat, hook, can not loose too much, do not start the turntable fierce co-clutch.
3,Water well drill rig inscribed circle drill pipe, drill mention head must tighten the connector through the valve should be immediately shut off valve.
