The roof ventilation is also called the roof of natural ventilation and the roof natural ventilation. The main objects around the role of the aerodynamic wind vector theory "wind, windward side of the pressure, leeward and downwind side of the suction launched. Its performance mainly reflected in: (1) the overall arc shape of the flow line, both to ensure the intensity of the ventilation itself, but also effectively reduce the ventilation itself under pressure (2) to ventilators body height and arc formed by large capacity, and improve indoor air collection and disposal capacity. Roof ventilation snow load capacity depends on the design form of the steel frame, steel frame materials, specifications and the thickness of the hood cover and other factors, including the choice of component materials specifications is very important, first of all should be fully guaranteed to meet wind and snow load requirements, but also avoid unnecessary use of large size. 
 The Liaocheng Sunlight Stainless Steel Co., Ltd. is currently the only one specializing in the production of roof ventilation equipment manufacturers. In recent years, under the joint efforts of engineers and technicians, factory production of free electricity --- roof ventilation domestic specifications largest, most complete variety of manufacturers, one of which 300, 360, 450, with in residential buildings, villas floor roof ventilation mouth, 500, 600, 680 is mainly used for factory workshop and large public places ventilation exhaust. Full stainless steel body, cast aluminum support a special double-sealed bearings. The products sell all over the surface of the country, first class after-sales service. Windmill - wind pump fuel, no electricity, manufacture of fine, wind speed 1.67 m / sec, which can start. Tower fan blade diameter of 5-10 meters, nine kinds of specifications can be designed and manufactured according to different needs. Colorful weathervane is widely used in the park, the green band edge, the villas and corporate production environment, it can not only indicate the wind direction and speed level but also add a touch of dynamism and harmony to your environment. In the face of strong competition in the market, our factory always adhere to manufacturing quality products for the guidelines, which insists on integrity, excellent service up to maximum customer satisfaction contact: King Star Sales Tel :0635 -8,322,238 13,906,356,805