The non-powered roof fan is suitable for ventilation, ventilation and air diffusion in factories, warehouses, building roofs, villas, patios, flower houses, poultry breeding, mine tunnels and all roofs.
On October 12, 2018, the Yonghe Chengfan roof fan was shipped. Guests should first try 6 500mm (20'') roof fans. If the trial is successful, there will be a big order for us in the future.
Bulk roof fans save space; easy to load; cost savings. If you are a buyer of roof fans, you can consider buying bulk in better.