hardened and tempered steel strip 1.size:0.15-2.5mm*8.0-300mm 2.hardness:30-55HRC 3.polishing,colored 4.slited ... and tempered steel stripAttributes1.Catalogue:carbon steel strip,spring steel strip,alloy steelstrip,stainless steel strip.2.Grade:CK50,CK60,CK67,CK70,CK75, ... C75Cr1,50CrV4,60Si2Mn,3Cr13,etc3.Technique:hardened and tempered4.Thickness:0.15-2. ...