Superior Die Set Corporation is a fourth generation, family-owned manufacturer of steel and aluminum products. Catering to th ... e metal stamping, plastic injection molding, and forging industries, Superior Die Set also manufactures custom fabrications for machine tools, construction, and press automation. Since 1923 Superior Die Set has provided full in-house production capabilities, creating a cost-effective and streamlined process for its customers. Located just outside Milwaukee, Wisconsin, Superior Die Set employs nearly 500 people worldwide through two subsidiaries: Greendale Precision Services (Milwaukee, WI) and ProPlastica (Bytów, Poland) read more