Our factory has independently or cooperates with the drillingmanufacturer to produce the ratchet claw type、frictiontype、rail rolling type and trackless rolling drillingmachine movement device. The specification is from 2000 meters to 9000 meters,ranging from onshore to offshore. The annular track slip device of artificialisland modular drilling rig and the moving device of 7000 meter tracklessrolling type drilling rig with 360 ° directionwhich are produced by both ourfactory and customers, that is fill in the domestic blankand the technicallevel is leading in the world.