1. This machine has the characteristic of low noise,heavy air flow,steady pressure,the chassis and impeller's surface is sprayed by advanced craft assembly line,so the color is soft,bright and permanent.
2. it is suitable for ventilation of industrial factory,civil building, warehouse, workshop,the entertainment,roof.
3. SF series is divided into pipe type, stand type and post type according to instruction.it has 6 symbols,such as 2.5,3,4,5,6,7.it has single-phase and three-phase according to the motor.