... Adopt big impeller turbo fan, Germany SIEMENS Brand motor, 11KW,6-pole motor, 970RMP, 380V,50HZOutlet fan(Direct drive motor)Adopt ... big impeller turbo fan, Germany SIEMENS Brand motor, 11KW,6-pole motor, 970RMP, 380V,50HZPainting and baking exchange systemSolenoid valve+ pressure ... system can collect exhaust air’s energy to heat the cold fresh air, then through second heating by furnace, the ...