The case is constructed from 12MM multilayer plywood and surfaced with a black plain-pattern fireproof laminate. The joints of the aluminum profiles on all four top and bottom edges are secured by aluminum welding. It features a side-pull sliding door for convenient on-site storage and time efficiency. The internal frame is made of 5MM steel plates, which are fixed within the case by multiple rubber pads at the top and bottom to provide effective shock absorption during transportation.