The aerial train is a train running under the air track in the way of suspension. The steel aluminum composite contact rail system products of air train are installed on the inner wall of steel beam of box track, and transmit electric energy to the vehicle through collector shoe.

The steel aluminum composite contact rail adopts a new welding structure, adding stainless steel bar to realize the three-way welding of stainless steel. The structure has strong steel aluminum bonding force, excellent conductivity, compact product structure and convenient installation and maintenance.