1. Steel Raw Material: GB45/JISS45C/CK45, GB35/JISS35C/CK5
2. Induction Harden Hardness: from 50 HRC into 55 HRC.
3. Chrome Plating Thickness: from 15μm & 25μm.
4. Salt Spray Test Time: 120 Hours Min.
5. Mechanical Property Per GB/T699-1999 Standard
6. Good Quality & Price.