Oil Drill Pipe in active demand 1.OD: 10.3-1219.2mm 2 ... X52,X56,X60,X65,X70,X Oil Drill Pipe in active demand We can produced drilling pipe(API5D,APISEPC7,API5CT) ... Regards, We are equipped with facilities of top quality in the world, such as hydraulic upset forging machine, walking ... gauges. To improve the galling-resistance during initial break-in and drilling operation, all threads are also phosphated ...