Standards:ASME B16.9,MSS SP-43,DIN 2617,JIS B2313 ,GB/T12459,GB/T13401,SH3408,SH3409,HG/T21635,HG/T21631
Materials:Carbon Steel:ASTM A234 WPB WPC A105 A106 A53 A283-D API5LB A671-CC-70 A515-50 A135-A A179-C,etc Stainless Steel:304/304L, 316/316L,316Ti,321,317L,310S,etcAlloy Steel:A335-P1,P2 ,P5 ,P11,P12 ,P22,P91,P92,A369-FP1,P2 A250-T1 A209-T1 A213-T2,T9 ,T12 A199-T11,T22, Duplex Stainless Steel: S31803(SAF2205),S32750(SAF2507),S31500(3RE60).If you want to know more, pls visit www.hu-steel(dot)kom or contact cloris@hu-steel(dot)kom.