Color-coated steel doors and windows refer to exterior building coils (referred to as "color-coated sheets") made with cold-rolled galvanized steel sheets as the base material and coated with a weather-resistant, highly corrosion-resistant surface layer using modern processes. These doors and windows are called color-coated steel doors and windows because they use color-coated steel as the raw material. The color-coated galvanized coils are cut into strips by specialized machinery, then continuously rolled into closed, special-shaped tubes for doors and windows using cold bending, and finally further processed to produce color-coated steel doors and windows.
Domestic raw material supply is abundant, specialized processing equipment has been domestically produced, and a production system for supporting accessories and auxiliary materials has been established. The technical conditions for large-scale promotion are in place. The total domestic output of color-coated steel doors and windows has reached over 5 million square meters.
