... .slited/rounded edge Hardened 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. ... madeServiceA free sample could be provided for testing. Hardened and Tempered Cold Rolled Steel Strip