Dongguan factory supply Heights spring torsion spring production camera, LED lights torsion springs, to map processing, sample processing, can also be electroplated coating, size determined by you, the production of spring plant spring Heights low priced fast delivery. Produced by the spring to meet environmental requirements, and after 96 hours of salt spray test. Variety of options for spring material: stainless steel wire, carbon steel wire, wire, piano wire, copper wire. Spring is generally not in stock, you need to produce, would you please provide a detailed 3D drawings, materials, requirements, packaging. Choose Heights, choose success.