... (Mainland) Brand Name: ZHUXIN Type: Spring Steel Bar spring steel application: Auto manufacture, spring wire spring steel packaging & DeliveryPackaging Detail: in bundles ... specificationsWe manufacture high qualtiy spring flat steel, spring steel material: 65Mn, 60Si2Mn and so on spring steel we are key ... process, we are able to produce dozens type of spring flat steel from 6*40mm to 20*150mm. The ...