. Phone: 319-234-1075. industries will never let our customer run out of acceptable material that we are responsible for supplying” The quality system at DCI DCI The company was originally set up as a stress relieving operation serving the local casting industry. 200 Ida Street, Waterloo, iowa 50701. Our equipment, talented manufacturing personnel, and quality systems assure a high quality product produced on time at a competitive price. 200 Ida Street, Waterloo, iowa 50701. 12 paid holidays. DC Industries, Inc.Our operations are housed in a 70,000-square-foot facility which is divided into two areas, stress relieving and machining. us For sales contact:. Phone: 319-234-1075. industries will never let.