The body of this company's products is made of special sheets for TIN PLATE with a coating of electrostatic powders and hygienic materials. Among steel services, 304 stainless steel (stainless steel or STAINLESS STEEL) has the best quality. Grab steels and, over time (varies between a few months to a few years), disappear and rust. "Steel grab" refers to steels that absorb magnets and contain a more significant proportion of iron with a higher rust property. Some stainless steels use a lacquer-like coating that reduces magnetism and rust. But do not take 304 steel; it does not rust at all.