A natural ventilation system designed to remove trapped heat from rooms.
Japanese NSK axial bearing sealed, self lubricating.
32 pieces dual-arc vanes made from fluorine carbon coating aluminium alloy/stainless steel to keep rain from flowing backwards
Fireproffing reinforced nylon plastic support with high strength high tenacity and easy recovery from deformation.
0.7mm Korea puxiang 304/2B stainless steel plate as medium circle.
1 Aluminum Alloy Ventilator
2 Stainless Steel Ventilator