- Excellence In Machining 845 N. Union Union, MO 63084 Ph 636-583-1744 Fax 636-583-3123 ACF Machine: Is a production machining shop, specializing in turning, and we do it with some of the most advanced CNC equipment available. Our business is dedicated to large quantity production parts for select customers, who require high quality, complex, parts which are beyond the scope of the typical screw ...www.acfmachine.com