1.original manufacturer 2..size(thikness&width):0.15-2.5mm*8-600mm 3.MOQ:3tons 4.hardness:18-55HRC cold rolled annealed steel strip 1.Grade:ck45ck50ck60ck67ck70ck75 60Si2Mn 50CrV42.Technique:cold rolled ,annealed,hardened&tempered3.Hardness:18-55HRC4.MOQ:5 tons for trial5.Color: white, blue, yellow,grey,golden,navy,black6.Surface:polish ,polish blue,polish yellow,grey-blue,unpolish7.Edge:round, ...