Stainless steel 304 vacuum Insulated kettle double thermos Thermos Bottle Gift European style kettle 2L cold kettleStainless steel according to the arrangement of the internal structure of atoms can be divided into body centered cubic lattice structure (martensite), face-centered cubic lattice structure (austenitic) and close the six-party lattice structure (ferrite). Without magnetic austenitic itself, but the weight of the mechanical processing is the size of the magnetic fundamental, but does not affect the corrosion resistance of stainless steel and other quality currently in development and application of five kinds of stainless steel in the world, only the austenitic stainless steel (many 300 series brand, 200 series of nonmagnetic (processed or weak magnetic), and the ferritic stainless steel (series 400 grades), duplex stainless steel, martensite stainless steel, precipitation hardening stainless steel pipe with magnetic. In the current Chinese market use magnets to identify the advantages and disadvantages of stainless steel, and squeezed out the high quality of magnetic ferrite steel, etc