The industry mainly uses Z955 aramid paper and Z953 aramid honeycomb paper. In the field of electrical insulation in rail transit, Z955 aramid paper is used as the main insulation material for traction motors, transformers and other electrical equipment, which can greatly improve safety performance and service life. It has excellent electrical insulation and high temperature resistance, strong overload resistance, and can be used for a long time above 200 ℃. It can greatly reduce the volume design of motors and transformers, and is used as the main insulation material for insulation systems, Widely used in key parts such as traction motors and transformers in rail transit, as slot insulation, ground insulation, phase insulation, wire insulation, and interlayer insulation.

In the field of lightweight rail transit, the aramid honeycomb sandwich structure prepared by Z953 can be widely used in fields such as maglev trains, high-speed trains, subways, light rails, etc., for processing window frames, luggage racks, floors and other components of trains. Its use can reduce the center of gravity of the carriage, as well as the load on the axles and tracks, while reducing the weight of the vehicle and increasing the speed of the train.