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1) Auto opening device of shutter
2) Zinc sheet frame, stainless fan blade
3) Different air volume
| S/N | MODEL | AIR VOLUME/HOUR | POWER (kw) | Overall Size (mm) |
| 1 | 9FZJ-560 | 8700m3 | 0.25 | 650*650*645 |
| 1 | 9FZJ-710 | 13000m3 | 0.37 | 850*850*645 |
| 1 | 9FZJ-900 | 31000m3 | 0.55 | 1070*1070*665 |
| 1 | 9FZJ-1250 | 45000m3 | 1.1 | 1400*1400*665 |
| 1 | 9FZJ-1400 | 60000m3 | 1.5 | 1550*1550*665 |
9FZJ Series Stainless Fan Blade Tunnel Ventilation Fan