Stainless steel of Chinese Academy of Sciences synthesizes copper ions and silver ions on the basis of the original 304 stainless steel, thus creatively invented a new material with antibacterial effect-stainless steel. Constance is an old German brand, and China and Germany join hands to promote the spirit of craftsmen, create a good non-stick and non-lampblack pot, TV advertising support, source products, welcome to join mogul!