Vitreous enamel manufacturer/supplier, china vitreous enamel manufacturer & factory list, find qualified chinese vitreous enamel manufacturers, suppliers, factories, exporters & wholesalers quickly on made-in-china., page 2 The optimal ratio for stainless steel cookware is 18/10, or 304. this means there is 18% chromium and 10% nickel. this gives the correct balance of the metals to give you the benefits while minimizing the risk and the price. do not use for really long cooking timesuse ceramic or enameled cast iron instead. Shijiazhuang zhengzhong technology co., ltd., experts in manufacturing and exporting enamel cast iron cookware, cast iron casserole and 1093 more products. a u2026 Jan 01, 2017u00a0u00b7 stainless steel, vitreous enamel, 925 silver fixings. you do have to be careful with mild steel, in that using a wet enamel will start to oxidise (read rust) your pieces in some situations. this can be a great thing to promote, but if youu2019re after a pristine surface itu2019s something you will have to keep track of.