1. The cold-hot rolled steel plate is degreased by alkali washing and washed with water. After drying, it enters a horizontal (vertical) heating furnace heated by a radiation tube for annealing. A certain amount of hydrogen is introduced into the furnace to reduce the atmosphere in the early layer of the furnace.

2. The steel strip heated to a certain temperature is immersed in the zinc liquid under certain conditions for hot-dip galvanizing.

3. While the size of the zinc flower is controlled by the composition of liquid zinc, the method of forced cooling is used to control it. Before the zinc flower begins to diffuse, the small zinc flower product is quenched with the small zinc flower equipment to prevent the zinc liquid from continuing to diffuse, forming a small zinc flower.

4. After hot-dip galvanizing, it is cooled and then smoothed by the surface. Finally, according to the application, the surface is passivated or directly produced into a color-coated coil.