1. The imported galvanized sheet fan is divided into four models: 54 ", 50", 36 ", 24" and 18 ";

2. Hot dip galvanized sheet frame, with a thickness of 275g / ㎡ of galvanized layer, is formed at one time, and a drain is set at the bottom;

3. PG material fan blade, aluminum alloy shutter, 54 "and 50" with air duct;

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.