(1) Chengli fire truck overall performance complies with GB7956 "Fire Truck Performance Requirements and Test Methods".
 (2) The overall exterior maintains a certain level of flatness and complies with relevant regulations.
(3) All rivets on Chengli fire trucks maintain consistent density and comply with enterprise standards.
(4) All welds on Chengli fire trucks are firm, smooth, and flat, complying with enterprise standards.
(5) All control switches, instruments, equipment racks, and vehicles bear standardized nameplate markings.