With the continuous expansion of the application area of rental led display, more and more rental led customers have personalized requirements for the LED display’s parameters and appearance. The LED Display Cabinet occupies a very important position in the full set of rental led screen. A good led cabinet not only protects the electronic components inside the led display screen, but also determines the smoothness of the assembly of the led cabinet. Indoor and outdoor rental display cases are mostly made of iron or die-casting aluminum materials. The iron box has poor stitching accuracy and poor stitching quality. The die casting aluminum box can easily abrade the surface of the box during installation and disassembly. Then, is there any better case material than iron and aluminum?