... 1. Aluminum housing ,outer rotor motor 2. Temperature:0'C; 3. Fin space: 4.5mm ... which is effective to reduce thermal contact resistance and improve thermal transfer.3. After pressure test, ... trichlorethylene to clean oil dirt, moisture, oxide and other impurities inside. As such, no blocking trouble ... , low in noise, and far in air throw, guarantees good performance in humidity and low temp.5. Equipped ...