HARDEN & HEAT TREATMENT We created a great partnership with our heat treatment supplier in providing the good harden and heat treatment quality to achieve word class standards in heat treatment and coating, heat treatment & coating available such as: Case harden (Carburizing), Gas Harden, Vacuum Harden, Nitrating, Induction, Blacken, Hard chrome, nickel chrome, flash chrome, clear & black anodize, Black anodize, Nickel platting, Blue Zink, Black Zink, Yellow Zink, & Chemical film.