The sponge door seal is constructed with a galvanized steel frame and polyurethane filler. The surface is covered with wear-resistant fiber sheets. The breathable hole design is conducive to exhaust. It is suitable for standardized fleets and effectively seals the sides and top of the vehicle.

Dock leveler is used to load and unload the cargo port, to solve the height difference between the truck and the platform, to achieve fast loading and unloading. Driven by the hydraulic system, the platform surface rises upward to the highest point, and then the lip plate automatically turns outward or extends. The platform surface then slowly drops until it falls onto the compartment board, and the lap is completed.