... 2>low price but high quality 3>OEM & ODM 4>CNC automatic production 5>fast delivery High Quality Shock Absorber Springs 1 ... alloy spring steel, refractory steel, brass, bronze, etc.5Surface treatment Zinc-plated, nickel-plated, chrome-plated, silver-plated, gold-plated, ... and shaped springs. We are famous for our superior quality, competitive prices, first-class craftsmanship, safe packaging and ...