... in land drilling rigs/ work over rigs/ rig equipments and provides rig RENT and oilfield services for Oil-Gas, ... second-class chassis, and based on which the workover rig is equipped with sub-frame, PTO, hydraulic torque ... . Besides, it is also can equipped with rotary gear box, rotary tabel, drill platform, air slips and swivel and ... height (m)18 XJ45 (300KN/ 2000m) hydraulic rotary drilling rig