1. Imported FRP fans are divided into five models: 54 ", 50", 36 ", 24" and 18 ";

2. FRP frame, rust and corrosion resistant, long service life, including air duct;

3. PG material fan blade, PVC material shutter;

4. 54 "and 50" fans are belt driven and adopt elastic tensioning device to maintain constant belt tension;

5. 36 ", 24" and 18 "fans are directly connected transmission structure, which is efficient and energy-saving.