Curtis Metal Finishing Group is the largest heat treatment and finishing operation in North America with locations in Michigan and Illinois serving the automotive, heavy truck, agriculture, construction, energy, defense and other industries. Since its inception in 1927 we have been offering a wide array of services, including continuous and batch hardening, solution treating, age hardening, gas nitriding, and induction hardening. We also offer premier coating application services including Magni, Geomet, PPG cathotic E-Coat, and Xylan among other finishes. Driven to be the Best!