External protection refers to the protection of machine tools' exterior, as opposed to internal protection. The external machine tool protection is designed to shield the exterior from dust and debris that may be introduced during the high-speed operation of the machine tool when workers pass by. With the protection of the external cover, the machine tool remains exceptionally clean, thereby extending its lifespan. Internal protection is for safeguarding all fragile components within the machine tool, preventing injury to the operator during operation. It also allows for the provision of aesthetically pleasing, generous, high-taste, high-precision, and high-performance modern professional products. Mainly used for protective covers for engraving machines, precision engraving machines, bending machines, slitting machines, automated equipment, CNC machine tools, and more.