Baidu know Guangdong manufacturers [sun roof ventilation roof ventilation manufacturer of stainless steel] also called roof natural ventilation and natural ventilation roof. Mainly around the carrier type theory of aerodynamics in the wind, "the wind acting on the object, the pressure windward, leeward side and downwind side of the suction" to start. Its performance mainly reflected in: (1) overall for the streamline arc, both to ensure the ventilator body strength, but also effectively reduce the body's exposure to wind pressure ventilation (2) the use of ventilators body height and arc formed by the large volume, improve indoor air collection and discharge capability. Roof ventilators snow load capacity depends on the design of the form of steel frame, steel frame material specifications and rain plate thickness 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, while also Avoid unnecessary use too large specifications. Sunlight Stainless Steel Co., Ltd. specializes in producing Liaocheng Free Electricity - roof ventilation products, with large and medium-sized stamping equipment more than 20 sets. Several researchers have ventilators, Model no power ventilators, non-powered fan, roof ventilators, stainless steel ventilators, exhaust hood and all kinds of special-shaped ventilation, a professional installer. Welcome customers to visit counterparts. In recent years, the company engineering and technical personnel of the joint efforts of the factory production of free electricity - roof ventilation is currently the most specifications, most complete variety of manufacturers. Of which 300, 360, 450 is mainly used for residential buildings, villas building roof ventilation mouth, 500, 600, 680 is mainly used for factory workshop and large public places to use exhaust ventilation. All stainless steel body, cast aluminum support special double sealed bearings. Product sales over the surface of the country, world-class service. Tel: 13906356805 Website: www.sdygbxg.com