Hydrothermal type air curtain 
 The air curtain all-metal structure, high fire resistance, the overall structure is compact, easy installation and simple maintenance. 
 The air curtain air curtain in the tubular body machine to place high efficiency heat exchanger, the use of tubular air curtain of air to the heat emitted from the wind screen machines exports. 
 The air curtain remote control switch adopt microcomputer control, easier to use. 
 The air curtain machine with external rotor motor, external rotor motor, small size, wear, low noise, good cooling performance, running more stable, longer life. 
 The air curtain of high quality aluminum alloy impeller. The impeller strength, rigidity, corrosion resistance, lasting deformation.