Duer/Carolina Coil sells, manufactures and delivers engineered springs. The company s products include cold and hot wound springs; compression, extension, torsion, pigtail, coned, variable pitch and special configurations; and expertise in nuclear, high temperature and exotic material applications. It also features state-of-the-art furnace technology and carefully controlled manufacturing processes that guarantee consistency from spring to spring. Services include in-house automated powder coating and liquid paint lines with a wide selection of colors and finishes, as well as grinding, shotpeening, grit blasting, magnetic particle inspection, computerized load and rate testing and metallurgical analysis of materials and finished products. Duer/Carolina Coil is located in Greer, S.C.