HCZION Roof Wind Turbines 4 8 10 12 14 16inch Rotating Turbine Ventilator, Garden Roof Ventilator Industrial Turbine Vents, DIY External Extractor (Size : 350mm/14inch)

High-quality stainless steel material, non-energy power fan, strength enough to withstand 200 km/h wind speed, 100KG load capacity, heavy pressure without damage or deformation.
The galvanized bearings are designed to be enlarged and thickened, which has a stronger bearing capacity, and rotates silently without producing more sound, which is very suitable for garden roofs, public baths, etc.
It has a wide range of applications, which is very suitable for farms, breeding farms, industrial plants, cargo warehouses, chimney tops, and is used without electricity, reducing more trouble.
No electricity, no maintenance, no electricity, automatic exhaust throughout the day will also reduce the occurrence of fires and a lot of other unnecessary troubles caused by short circuits or voltage overloads for you.
Smooth surface, smooth and beautiful appearance, the overall design is unique and eye-catching, and is deeply loved by the public.