... 2.hardness:30-55HRC 3.polishing,colored 4.slited/rounded edge Hardened and tempered steel stripAttributes1.Catalogue:carbon steel strip,spring steel ... ,CK67,CK70,CK75,C75Cr1,50CrV4,60Si2Mn,3Cr13,etc3.Technique:hardened and tempered4.Thickness:0.15-2.5mm max tolerance+/-0.01mm5 ... to 55HRC7.Surface:polishing,blue,grey-blue,yellow,nature,etc8.Edge:rounded,slited9.MOQ:5 tons10.Remark:all of the attributes ...