Sự khác biệt giữa mạ kẽm nhúng nóng và mạ kẽm trước
1, hot dip galvanized: also known as hot dip zinc and hot dip galvanized: is an effective way of metal anticorrosion, it is melting the zinc ingot at high temperature, in some auxiliary materials, and then the metal structure into the galvanizing tank, so that the metal components attached to