1.jet-grouting drilling rig. 2.crawler rig 3.hydraulic drilling ApplicationYG(L)-20X drilling rig is one kind of full hydraulic power head (top drive) drilling rig.It can be applied in direction jet-grouting,pendulum jet-grouting,circulation jet-grouting work,and used for high pressure jet-grouting work in Quaternary Cover Area such an soil,sand,pebbly sand and so on.It also canbe applied for ...