O1/1.2510 cold work mould steel EAF or ESR material,black or ... :customer requested size) O1/9CrWMn cold work mould steelO1/DIN1.2510 Features:1)Chemical composition:C=0.85~0.95,Si ... steel:O1(USA AISIS),9CrWMn(China),SKS3(Japan JIS),1.2510(Germany,DIN),90MnWCrV5(France,NF)3)Delivery condition: Hot rolled ...