Vertical sheet metal industrial chassis, bent and assembled cold rolled steel with light gray powder coating, wear-resistant and rust-proof. Dense perforated mesh panel on side for excellent ventilation. Multiple rectangular and circular cutouts on top for fans and connectors. Spacious inner space for power supply and PCB installation. Bolted structure for easy maintenance. Suitable for industrial controllers, power inverters and communication equipment. Custom sizes, perforation patterns and coating colors available.