... St52/DIN1629/4 1.0832 St52.4/ASTM A210 GR. C precision seamless steel pipe 1.Steel Grades:RSt 34-2 ... , RSt 37-2, St 44-22.Length up to 9M3.MOQ:25Ton4.Ability:100,000Ton ... ,600,0250,025RSt 37-20,170,300,700,0250,025St 44-20,210,301,10,0250,025 DIN 1629/3 1 ... St52/DIN1629/4 1.0832 St52.4/ASTM A210 GR. C precision seamless steel pipe