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Non Power Roof Fan

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Qingzhou Yongsheng Machinery Co.,Ltd is one of the professional China non power roof fan manufacturers and suppliers,Website:http://www.qzys-exhaustfan.com, welcome to wholesale low price non power roof fan from our factory.Working Theory: convection between ;natural wind ;and air to accelerate and transform any parallel airflow into vertical so as to improve the indoor ventilation. The hot air rises and ;Cold Air ;falls, which makes the fan rotate. So the ;indoor heat, stink and dust are exhausted effectively. It also can effectively remove indoor soot, smoke, odor, moisture, heat, decorative harmful gas, dust, human metabolism and other dirty volatile mixed-doped odor as well as viruses and bacteria invasion.??Working Result: it improves the working environment, protects workers& acute; health and enhances the working efficiency.Application Areas: warehouse, toilet, factory, workshop, stadium, tennis hall, assembly hall, garage, ;paper Mill, galvanization factory and coating factory. ◆Need no energy: Nature wind drives,operating in 24hs the whole day ? ◆High efficient air & moisture removal capacity, better than that of similar products over 25% ◆Unique blade design with smart operation and wind-proof & rain-proof ◆Imported bearing, free lubrication,no noise and free maintenance ◆Unique variable angle tube help to realize easy installation ◆High-quality stainless steel body. Supporting brackets are all made of stainless steel, which has very good corrosion-resistant ability. ◆Environmental protection, energy saving and ;no electricity ;cost. ? ? ?? Stainless Steel Roof Fan ? ? ? ? ? ? ? ? ? ? ? ? ??Color Steel Plate Roof Fan Model Fan Blade Quantity Sphere ?Diameter Air Flow (m3/h) 300 24pcs 430mm 1000 500 32pcs 630mm 1800 600 32pcs 730mm 3000 800 42pcs 900mm 6500 Remark Material: Stainless Steel/Color Steel Plate

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