Founded in 1927, the Commercial Steel Treating Corporation provides metal processing through its plants located throughout the United States. The company offers an array of heat-treating services. Its capabilities include continuous and batch hardening as well as salt bath and gas nitrating. Commercial Steel Treating recognized the need for corrosion resistant coatings and founded the Curtis Metal Finishing in 1963 to offer this service. During the last 70 years, three generations of family ownership have helped build the company s reputation and experience. Commercial Steel Treating is headquartered in Madison Heights, Mich.