... by our CNC spring machine. We have our factory and fabricating center in producing spring machine. Please ... , anodizing, zinc plating, nickel plating, etcTypeextention springApplicationauto, toy, electronics, medical device, motorcycles, furniture, bicycles, sofa, etcFeaturehigh precisionDemensionscustomizedWe can ... after receiving the balance. 2012 Customed Bright Good elasticty pullback spring