The density is only 2.3g/cm³, only 1/3 of the steel plate, the weight of a single plate is reduced by 10kg, effectively reducing the spring weight, and improving the maneuvability. High temperature resistance: the braking force does not decline at high temperature, the maximum service temperature of the carbon ceramic plate is 1420℃, and the maximum temperature of the steel plate is 600℃. The braking distance is shorter, the braking force does not decay in rainy days, and the average friction coefficient of carbon pottery is 0.45.