High Quality Carbon Steel Drill Pipe 1.OD: 10.3-1219 ... A,B,X42,X46,X52,X56,X60,X65,X70,X High Quality Carbon Steel Drill Pipe We can produced drilling pipe( ... contact. Regards, We are equipped with facilities of top quality in the world, such as hydraulic upset forging machine, ... are cold rolled. The products shall be equipped with pressed steel or plastic steel thread protectors on the connections. ...