Sunshine Special Zhengzhou roof non-power roof fan Price Fuzhou power blower manufacturers rooftop turbine without the power blower use of the nature of the natural wind speed to promote fan the principle of rotation, and indoor and outdoor air convection. Device on the roof of the factory, very good ventilation effect. Because factory often due to the operation of the machine tool to produce heat and smoke pollution, hot air will be expanded, in accordance with the principles of the "Rezhanglengsu" Thus, the number of molecules within a certain volume of air decreases, the relative density of the hot air will be cooler air , that hot air is lighter than cold air, indoor hot air to rise, the indoor heat or smoke pollution gathered near the roof, so the indoor temperature high pressure. Then that coupled with natural ventilation in the roof, the indoor heat or smoke pollution unscrew the blade gap to the draft law works outdoors, a low pressure when the heat is extracted, indoor, outdoor air is below the high air pressure, so air flows into the room, to fill the space of the hot gas is extracted, thus regulating the temperature, go decontamination smoke effects, indoor air becomes clean and cool. Liaocheng Sunshine Stainless Steel Co., Ltd. is currently the only company specializing in the production of roof ventilation equipment manufacturers. In recent years, under the joint efforts of the engineering and technical personnel, factory production of free electricity --- roof ventilation is currently one of the domestic specifications largest and most complete variety of manufacturers. 300, 360, 450 with residential buildings, the villa floor roof ventilation mouth, 500, 600, Model 680 is mainly used for exhaust ventilation plant workshop and large public places. All stainless steel body, cast aluminum support special double sealed bearings. World-class product sales over the face of the country, after-sales service. Windmill - wind pumps fuel, no electricity, manufacturing, and that is able to start. High tower fan blade diameter of 5-10 meters, all nine specifications can be designed according to the different needs of production. Colorful the weathervane widely used in the park, and the edge of the green belt, villas and corporate production environment, it can not only indicate the wind direction and speed levels can also add a dynamic and harmonious environment. The face of strong competition in the market, our factory always adhere to manufacture high quality products for the guidelines, adhere to honesty, excellent service up to a maximum customer satisfaction associates: King Star Sales Tel 0635 -8322238 13906356805