The welding free integrated assembly process is simple in production and convenient in installation. High temperature hot dip galvanized strip steel has undergone a fully automatic numerical control cold bending equipment, 20 cold bending forming processes, and surface treatment procedures of a fully automatic coating assembly line, resulting in high-quality and high-strength zinc steel shutter profiles. Compared to traditional aluminum alloy louvers, zinc steel louvers have lower cost and increased strength; The vertical column is perforated by fully automatic CNC equipment, with fast assembly speed and short construction period. The materials can be directly cut on the site and assembled and installed on site.