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Production Standard,Steel No. ASTM A213 T11,T12,T22,T5,T9 ASTM A335 P11,P12,P22, P5,P9 ASTM A199 T11,T22,T5 ASTM A209 T1,T1a,T1b, EN10216-2 10CrMo5-5,11CrMo9-10,X11CrMo5+1,TC1,TC2 JIS G3462 STBA 12...