The bottom of Changwen 5 ply cookware sets is a multi-layer bottom structure consisting of stainless steel layer, aluminum alloy layer, copper layer, aluminum alloy layer and stainless steel layer. This five-layer design is more balanced and has good thermal conductivity. Changwen has many years of experience in the production of stainless steel products, with complete product specifications and exquisite craftsmanship. It provides factory customization services and its products are suitable for a variety of cooking needs.