Aluminum ventilation louvers on people's doors and windows not only to meet energy requirements of quality, greatly improved people's activities in environmental quality, energy conservation and the state facilities to reduce greenhouse gases carbon dioxide emissions, and environmental protection have a positive significant impact, has high social benefits, its use for developers of low investment costs, but also has a good energy saving economic returns. Aluminum ventilation louvers having unique properties: sound effects: a sealing slot, tops, close together when finished, double hollow structure to maintain the indoor temperature, outdoor temperature shutters isolation between the blade and the mounting bracket, leaves all closed indoor noise can be reduced 30 db and on, when the air conditioning and refrigeration also can greatly save energy. New aluminum blinds thermal design features 1, low noise design: fan with a world-known power and well-known manufacturers Haier motor fan blades constituted assembly, low noise shutters installed wind capacity, quality assurance galvanized shutters, durable 2, automatic temperature control design: microcomputer automatic temperature control (remote control) and manual blinds factory setting function automatically adjusts the fan speed according to water temperature (high low), according to the water temperature (35 ℃) and low temperature automatic power-off 3. natural circulation design: evaporator inlet and outlet ends of the tanks with large cavities copper, water flow, less vascular resistance, with automatic exhaust function without the use of forced circulation pump power can be used normally, central heating and soil heating are mountable Spray blinds shutters _ _ Changyi metal provided by Linqu Longtai Longtai Metal Products. Linqu Longtai Metal Products (www.wfhulan.com) strong, credible, Shandong Weifang Fence, bar, network industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead longtai metal into the brilliant and you work for a better future!