1.ASTM A335 P11 Alloy steel pipe 2.Outer diameter:6mm~2400mm 3.Wall ... ,DIN17175,GB5310,GB9948MaterialASTM A335 P2, ASTM A335 P12, ASTM A335 P11, ASTM A335 P22, ASTM A335 P5, ASTM A335 P9, ASTM ... , Africa, Eastern Asia, Western Europe and So on. ASTM A335 P11 Alloy steel pipe