Lunch boxes made of stainless steel are the best. The basic alloying elements of stainless steel are nickel, molybdenum, titanium, niobium, copper, nitrogen and so on. In order to meet the requirements of various uses for the microstructure and properties of stainless steel. Stainless steel is easily corroded by chloride ions, because chromium, nickel and chlorine are allophanates, which will exchange and assimilate to form corrosion of stainless steel.

Suggestion: Eat less instant noodles.