... New Style Stainless Steel Extention spring for toySprings made by our CNC spring machine ... 2.Applications: Automotive, medical device, electronics, toy,industry. Item nameExtention springItem numberES001Material availablecarbon steel ... , anodizing, zinc plating, nickel plating, etcTypeextention springApplicationauto, toy, electronics, medical device, motorcycles, furniture, bicycles, sofa ...