Solid Control System, Downhole Drilling Tools, Rig Component manufacturer / supplier in China, offering Drill Pipe Power Tong Zq203-100 3-1/2-8 Inch 100 Knm, Drill Pipe Power Tong Zq127-25y 73-140 mm 25 Knm, Drill Pipe Power Tong Zq162-50 85-162 mm 50 Knm and so on.