... manufacturing processPerformance::1) Our precise interpretation and production of suspension coil springs to OEM standards, assure that our customers will enjoy ... top quality material and design in our replacement coil springs2) With the assisted coil spring, the shock absorber works more effectively3) Our ... -Benz, BMW, Volvo, Citroen, Hyundai, Skoda, Peugeot, and so on coil spring