... powder.Specification1. we can produce the spring from 8mm-16.00mm.2.Applications: Automotive, medical device, electronics, ... , etcSurface treatmentpolishing, anodizing, zinc plating, nickel plating, etcTypeCompression spring,Auto spring,others.Applicationauto, toy, electronics, medical device, motorcycles, furniture, ... DHL or as your request after making payment.2). A Tracking Number will be sent to ...