Our products including the main machinery of Oil, Wells Drilling Rig and main machinery of drill Pipe, Joints and other relative drilling tools. Drill Pipe include three type: small clasp, Friction Welding and the Overall modulation, diameter 42-127, under a steel-DZ40, DZ50, N80, R780, G105. the material of joints include 40CR, 35CRMO, 45MN2, they are usually used in Exploration, Oil, Water, and other coalfield industry.