Introduction: chrome steel balls comprised of 304 and 316 grades give corrosion resistance and longevity, with hardness levels among HRC26 and HRC30 making sure longevity in demanding industrial employs. every single https://kangdasteelball.com/products/high-quality-steel-balls,-10mm-158mm,-made-of-304-or-316-stainless-steel,-suitable-for-drilling-threads