Edit this paragraph works: 
 No power ventilation 1. Use of natural air convection principle, any parallel to the direction of air flow, accelerated into the bottom-up vertical air flow. (2) use of construction and equipment combined with the chimney effect itself, in order to achieve the indoor and outdoor ventilation equipment. 
 Edit the scope of this paragraph applies: 
 Large factory, warehouse, venues, farms, commercial establishments, high-rise buildings, residential and so on. 
 Edit this paragraph features: 
 Zero cost to run 24 hours without personnel to operate, light weight, green, no noise, long life, easy to install and quick, broad applicability, the unique circular appearance (Tai Chi principle to resolve the horizontal push force) and the support structure to ensure that the turbine can to withstand typhoons. Uses a unique variable angle diameter, 0 to 22.5 inclination of a variety of industrial plant light steel pressure plate roof, concrete roof can be installed directly to the slope plus attachments can be installed. 
 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