For sheet metal equipment, the design of her sheet metal shells is limited by multiple factors and needs to meet multiple aspects of technical requirements. Specifically, sheet metal shells are also called sheet metal shells. They are made of sheet metal materials. They are made of sheet metal molding process to store boxes, computers, electricity or other equipment. Such as electric cabinets, network cabinets, server cabinets, outdoor cabinets and other equipment. When designing sheet metal shells, the following points should be achieved to meet the basic technical requirements of sheet metal equipment.