27Si Mn alloy steel plate 1)standard:AISI, ASTM, BS, DIN, GB, JIS ... :600-2000mm 3)LTH:3.5-12m 4)TYPE:alloy steel 27Si Mn alloy steel plate Standard:DIN1629/4,DIN1629/3, Material:St52 ... -325mm,Sch:10s/s-xxs, Length;3-12m alloy plate 1. commodity: alloy steel plate2.Manufacturing standard:DIN17155,ASTM,AISI,GB 3 ...