sae 1075 acero · astm heat treatment 50crv4 spring steel hardened . c75 ck75 c75s high carbon knife steel strips · c75 ck75 c75s high carbon knife ste.
CK67,SAE1070,CK75,C75S. Thickness: 0.2-3.0mm. Place of Origin: Guangdong, China (Mainland). Technique: Cold Rolled. Surface Treatment: Polished.