1.The car uses a chassis with a wheelbase of 4500mm as standard and optional configuration 1, and a wheelbase of 5300mm as a chassis with optional configurations 2, 3, and 4;2. The special devices are spray system devices, liquid storage tanks, and air control systems, which are mainly used for haze and dust reduction operations on roads, squares, or fixed places;3. Tank dimensions (long axis × short axis × length) (mm) of standard, optional configuration 1, and optional configuration 2 (mm): 2250×1300×3600. The effective volume of the tank is 9.2 cubic meters, and optional configuration 3 The tank outer dimensions (major axis × minor axis (mm): 2400×1420×3200. The effective volume of the tank is 9 cubic meters;4. The material of the side protective device is aluminum alloy, and the connection method with the vehicle is bolted. Its appearance can be optional; the material of the rear protective device is Q345A, and the connection method with th…