Oil Drill Pipe in active demand 1.OD: 10.3-1219.2mm 2.WT: 1. ... ,X52,X56,X60,X65,X70,X Oil Drill Pipe in active demand We can produced drilling pipe(API5D,APISEPC7,API5CT) of ... in the world, such as hydraulic upset forging machine, walking beam quenching furnace,, hot and cold straighten device, friction welding machine ...