galvanized roofing

Galvanized Metal Roofing Board Width: 665-1100mm Length: 1-12m Plating: 30g/m² – 275g/m² Design Style:  Customizable Product Introduce The production of galvanized metal roofing board is divided into two steps. Firstly, carbon steel is immersed in molten zinc to form a zinc protective layer (hot-dip galvanizing process). The thickness of the zinc layer directly affects the […]