... 9M 3.MOQ:25Ton 4.Ability:100,000Ton/Year DIN 1629/3 1.0831 St52/DIN1629/4 1.0832 St52.4/ASTM A210 GR. C ... precision seamless steel pipe 1.Steel Grades:RSt ... ,0; 3,5; 4,0; 4,5; 5,0; 5,5; 6,032; 35; 38; 401,0; 1,2; 1,5; 1,8; 2,0 ... ,210,301,10,0250,025 DIN 1629/3 1.0831 St52/DIN1629/4 1.0832 St52.4/ASTM A210 GR. C precision seamless steel ...