Zinc content of color steel galvanized sheet

The zinc content of the substrate directly affects the rust resistance of the color steel plate. Generally, the zinc content of the high-grade color steel plate is about 120g, the zinc content of the mid-grade color steel plate is about 60g, and the zinc content of the low-grade color steel plate is less than 60g. I believe everyone must understand that the higher the zinc content, the better the quality of the color steel plate, and the higher the grade of the color steel plate.