If it is used at the seaside, it is recommended to choose Jay? 3 16 material column, because chloride ions in the air have strong corrosive ability to metal products, Jie? Hardware made of stainless steel? S3 16 stainless steel raw materials are treated by solid solution in order to improve the plasticity and toughness of stainless steel, prepare for precipitation hardening treatment, fully dissolve various elements in stainless steel, strengthen solid solution, improve toughness and corrosion resistance, eliminate stress and softening, so as to continue processing or forming. Besides, Jay? The factory also carries out pickling passivation treatment on all stainless steel products, which can simultaneously remove dirt such as oil stain, rust spot, solder joint, oxide layer and free iron on the surface of the workpiece, and greatly improve the corrosion resistance of stainless steel after passivation. Choose carefully, otherwise it will affect the acceptance.