Drilling Rig, Water Well Drilling Rig, Borehole Drilling Machine manufacturer / supplier in China, offering Besdrill API 7K Certified Wwb Manual Tongs for 2 3/8-10 Inch Oil Drill Pipes, Besdrill High Strength Type Sb Manual Tongs for Drill Pipe and Coupling Handling, Compact Design Pusher Plate Clutch, Space - Saving and so on.