Nitrex Metal Inc., Montreal, Canada, has entered into a new license agreement with Carolina Commercial Heat Treating (CCHT) to incorporate Nitreg(r) nitriding into CCHT's range of quality compliant heat treating services in Reidsville, N.C. Although Nitrex operates its own network of heat treating centers in North America, CCHT, a division of Gibraltar Steel, is the first independent commercial heat treating company in the U.S. to offer Nitreg(r) nitriding services.