http://www.diversifiedcryogenics.com/Cryogenic Processing improves the life of your guns, engines, instruments, and tools. Located in Minneapolis, Minnesota, United States.
Temper-Master cryogenic processor manufacturing and tempering. Improves durability and performance of tools, musical instruments, and gun barrels. In Springfield, MO.
Cryogenic tempering treatment services for auto racing, tooling, firearms, golf clubs and musical instruments - Seattle, Washington and Wasilla, Alaska