1.Thickness:3-12mm 2.Size:25*25mm-200*200mm 3.Length:As ... 347L,409L,410,420,430,601,800,904L, etcST37-2, ASTM A36,S235JR,S355JR,SS4001.8-12mm,1250/ ... Steel PipeDin2391 17 Cr3, ST52, A335P11,P5,P910,P22, ST37, STK400GB5310-2008, ASTM A335/A335M ASTM A213/A213M JISG3458 ... SA106, ST45.8- and so on.GB3087-199910-426mm, 2-40mmFor industrialboilers of low & mid-pressure fluid conveying pipeFluid Pipe10 ...