... City,Zhejiang Province, Close to Hangzhou Xiaoshan International Airport and Shanghai-Hangzhou-Ningbo Expressway, with veryconvenient transportation. At ... present, Our enterprise mainly produces Centrifugal fan and blower, external rotor axial fan,ventilation fan, Duct ... protection: Motors of output power below 10W have impedance protection, and motors of output power above 10W have thermal ...