... ,A,B,X42,X46,X52,X56,X60,X65,X70,X High Quality Carbon Steel Drill Pipe We can produced drilling pipe(API5D,APISEPC7,API5CT ... ",4-1/2",5",5-1/2",Steel Grade:E75, X95, G105, S135 Type of end finish:EU,IU, IEU All drill ... process, inspection for raw material, magnetic particle inspection to pipe end, ultrasonic inspection on pipe body, inspection on weld seam linearity ...