The biggest advantage of galvanized steel is excellent corrosion resistance, painting, decoration and good formability. With the development of industry, hot dip galvanizing products have been used in many fields. The advantage of hot dip galvanizing is that the anti-corrosion life is long and it has been a popular anti-corrosion treatment method to adapt to the environment widely. It is widely used in power tower, communication tower, railway, highway protection, road light pole, Marine component, building steel structure component, auxiliary facilities of substation, light industry and so on.