Box Fan Shutter
2020-04-15
High strength hot-galvanized steel shutter, installed with centrifugal system and spring closing system.Ensure the shutter opens with 90 degree under all conditions.Ensure the lowest air resistance and biggest air volume.When closing, the sealing can efficiently block light and wind into the poultry house.Middle shutter thickness is 1.5mm, others are 0.8mm.
