Product Description Product Description Horizontal directional drilling rig Drilling rig system-it is composed of a main drilling rig, a turntable, etc. The main drilling rig is placed on the drilling frame to complete drilling operations and towing operations. The turntable is installed at the front end of the main body of the drilling rig, connected … Continue reading China best Mini Horizontal Directional Drilling Machine Horizontal Borehole Drilling Machine pto shaft alignment