System storage cabinets for factory use are storage cabinets for storing documents, tools, emergency supplies and related items. Most storage cabinets are made of steel. Storage with zinc plating or melamine baked coating has better moisture resistance, corrosion resistance and water resistance than general steel plate products. In addition to a type with drawers, the opening and closing parts of storage cabinets are also available in an open type and with doors. Types of doors include double-doors, sliding doors and shutters. Some double-door types have a double hinge that can be opened and closed 180 degrees. There is a shutter type product with a key which is suitable for preventing the loss of stored items. Related products include metal fittings and stands for connecting storages to each other and fixing them to the floor, and additional horizontal shelves and inclined shelf brackets, etc. Polyethylene foam sponge can be cut out in the shape of tools, and used to keep tools in place and prevent loss.