E-mail:maggie@wincomint.com
· 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.