The most fundamental material of steel filing cabinets is cold-rolled steel plate. Cold-rolled steel plate is obtained by using hot-rolled sheet coils as raw materials and being rolled at room temperature below the recrystallization temperature. The surface of cold-rolled steel plate is clean, featuring excellent processing properties. Through processes such as cutting plates, bending, welding, and spraying, it is processed into steel file cabinets. Generally speaking, the thicker the plate, the better the load-bearing capacity of the file cabinet, and the storage of documents is less likely to deform. The thickness of the board of the file cabinet typically ranges from 0.3 to 1.0, and the thickness can be customized.