Donsco is a single-source supplier of cast parts for various industries. The company offers CNC tooling, gray and ductile iron, high-volume production parts and prototypes. It performs engineering, machining, painting, assembly, boxing and distribution. Donsco also provides nickel alloys and high-silicon molybdenum. The company assists customers with product development and weldment conversions. It is based in central Pennsylvania and consists of three foundries, two pattern shops and a machine facility. Donsco is 9000:2000 certified by the International Standards Organization. The company has operated for more than 100 years and maintains a location in Wrightsville, Pa.