Size material surface weight(g) 12 ss 304 polishing 1190 22 ss 304 polishing 1820 32 ss 304 polishing 2450 Best precision metal has talented engineers ready to help with your design needs. We have a modern cnc machine shop and best stainless is ground, buffed and polished by hand to a mirror finish to assist in making a quality part. In the passivation process after buffing, acid and rinsing remove surface contaminants from the products and produce a hydrous oxide film which enhances corrosion resistance. Every production shipment tested and certified