A cold bending machine is not a "one-size-fits-all" device, and material compatibility is crucial! Ordinary carbon steel, channel steel, and angle steel are compatible with most conventional cold bending machines; stainless steel has high hardness, so special molds and equipment with increased power are required to avoid mold wear; when bending thin steel plates, the feeding speed and pressure must be controlled to prevent deformation; before processing special materials, it is best to consult the manufacturer and select a suitable machine model to avoid damage to the equipment and materials.