Air conditioning grille with a long time, there will be dust, debris and other pollution, thus affecting the use of air conditioning effect. So to maintain good air conditioning grille will improve its life. General air conditioning grille with the horizontal angle of 45 to 60 place, dip-hour standard aluminum blinds, when more effort to clean up, but the area is greater. Manual cleaning of air conditioning grille shutters, its design should be used to a larger area of ??the safety factor, generally not less than the effective area of ??the inlet canal twice, in order to avoid too frequent cleaning residue. Special attention should be harmful gases harm to the operator, and shall take effective preventive measures. Monolayer rain shutters ventilation requirements for long-term room or other public places with it by gullies (GBC none) of rain leaf and side frame with integral drip box on the form, even at the time of pouring rain, not only can effectively prevent rainwater into the interior, but also in the entire windward side curtain blinds will not form, thus ensuring the normal design of ventilation requirements. Rain blinds aluminum products is a rain products, this product is used for long-term requirements of the engine room ventilation or other public places quality aluminum blinds, it gullies with rain dripping leaves and with a box side framework. Rain shutters can effectively prevent rainwater into the interior, but also in the entire windward side curtain blinds will not form, thus ensuring the normal design of ventilation requirements. Oval hundred blade design, ventilation resistance, water proof before the leaves, the lower blade can only effectively absorb noise; and with fire, rain, moisture, nice features. Its muffler for 5-15dB (A), the pressure loss ≤30Pa aluminum blinds sold per square meter used in flow 1500m3 / h ~ 3000m3 / h. Secondary oxidation coating all aluminum construction with stainless steel, galvanized steel material. Rain, fire used in any weather conditions. Airfoil blade muffler can minimize airflow resistance and reduced noise transfer. Modulo assembled into a series of standard size of acoustic louvers. Painted in different colors according to need in an anechoic coating outside louvers. Aluminum blinds manufacturers | longtai metal (certified) | Quzhou blinds provided by Linqu longtai metallwarenfabrik. Linqu longtai Metal Products (www.wfhulan.com) Shandong Weifang, fence, fence, network leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In longtai metal leadership with the staff warmly welcome all inquiries negotiations to create a better future longtai metal.