... efficiency.It is widely used in warehouse, toilet, factory, workshop, stadium, tennis hall, assembly hall, ... garage, paper mill, galvanization factory and coating factory.Advantages:1)High-efficiency ventilation2)High-quality ... Aluminium AlloyAmount of Blade: 32PCSTotal Height: 620mmTurbine Diameter: 740mmVentilation Diameter: 600mmSoleplate Diameter: 600mm 600mm Aluminium Alloy Turbine ...