Guaranteeing to provide quality products, we use such advanced equipment as friction welding and drilling lines, an electric furnace and high precision alignment machines. Our main product lines now include drill pipes in diameters of 50/60/73/89/114/127 millimeters,and drilling joints in diameters of 68/78/105/121 millimeters ,and a variety of steel materials for them. Meanwhile, we can also provide drill collar in diameters of121/146/159/178 millimeters ,gelogical drill pipes in diameters of 45 /50/ 60millimeters,drilling joints in diameters of 57/165/75 millimeters all of them can be used in exploration drilling, oil wells and coalfield .Having built up a good reputation, we are renowned for our reliable products, competitive prices and fast order delivery. Operating according to the ISO9001 API standard, we are processing to the API applicate,It can reach us at the end of this years.we insist on the slogan of "Creativity, Quality First, Satisfy Clients".