The case is constructed from 15MM black PE plastic board, offering impact resistance, waterproofing, and abrasion resistance. The doors are made of bronze bulletproof glass with a detachable side-insertion design, combining aesthetics with robust durability. The internal frame features a custom hybrid structure of aluminum and steel, secured within the chassis by multiple rubber pads at the top and bottom to ensure effective shock absorption during transport. The wheelboard cart body is made of plastic board and reinforced with aluminum plates for caster mounting. Designed as a separate unit from the main case, the wheelboard cart enables stacking and hoisting via special connecting fittings installed on the top and bottom of the case.