The depth of Carburization also affected by different carburizing compounds,
steel, temperature and time.
Finishing: Zinc plating, nickel plating, chrome plating, phosphating, polishing,
case hardening, Carburization hardening, anodizing, black oxide.
With the processing of high frequency, Carburization, hardening and tempering,
chrome plating and polishing, it becomes hard and durable, hard to wear.