Perkins

Established in 1953, Sterling Spring Corporation is involved in custom spring manufacturing. The company offers a range of services, such as designing of torsion springs. Located in Chicago, Ill., it provides an array of products, which include torsion springs, compression springs, extension springs and light metal stampings. The company serves various industries, such as appliances, cellular telecommunications, heating elements, lawn and garden tools and equipment and medical. It has built a new plant in for its automotive department.