Stainless steel is usually divided into various models such as 201, 202, 301, 304, 309s, 310s, 410, 420, 431, etc. Among them, 201, 202, 301, 304, 309s, and 310s belong to austenitic stainless steel, which does not contain magnetism and can withstand corrosion in various media. 410, 420 and 431 belo
