"Chang-Feng" brand high-speed train using honeycomb panel are using high-strength aluminum alloy plate and aluminum honeycomb core composite vacuum formed, because of acceleration of high speed trains. Structural requirements needed to reduce vehicle weight to improve their speed and strength of the honeycomb structure itself, performance is good, has light weight, high strength, fire safety, such as performance, this product applicable to the train floor, wall panels, door panels, the overall hygiene at places such as. Because of urban light rail vehicles with axle load and frequent acceleration and deceleration, and overload running characteristics so require steel body strength and stiffness in meeting the requirements under the light as far as possible, the general control 0.4T / m or so, so that must be in the city the design of rail vehicles using lightweight structural materials and low-density material, the use of honeycomb sandwich floor structure. This structure not only has high strength, insulation and good vibration isolation performance, but can also greatly reduce the body weight of the body.