... rotor and blade, that adopt dual-side dynamic balance, dynamic balance achieved G6.3.3,The fan blade, rotor and grid is ... discoloration, and has good corrosion-resistant effect, motor cover also by the special treatment.4,The insulation grade ambient temperature:-25°C~+60 ... requirements: special voltage, dual voltage and so on.7,The line fan motor can be directly leaded out, and can provide various ...