Until the Tang Dynasty, folk are represented with mullioned windows. In the Ming dynasty, lying lattice windows have great development. Song pagoda made on a variety of diverse mullioned windows, also made in the Ming Dynasty pagoda lying lattice windows, particularly instances, those blinds is the predecessor. Window frames, no more than several styles, not the bar is the vertical bar. The bar that is the prototype of the blinds. Strictly speaking, lying lattice windows and shutters are a little different, and that is lying lattice windows and gaps paracytic transparent. Window frames made oblique lattice shutters, inside and outside the unseen horizontal direction, only to see before they can see the slope. In ancient times, people make wooden window frames, it is mainly used to achieve the purpose of ventilation and air circulation, while nearly blinds shutters generation through various improvements, has set a number of functions in one, for a variety of buildings. Use common sense aluminum blinds aluminum blinds are fitted with soft home decoration decoration dead matter, today's high-rise buildings, renovation will basically use. Blinds are popular because the price is not expensive, usually in the United States and Europe use more common galvanized shutters price, in fact blinds is a representative of the European and American personality decoration decoration material the use of a manual knob or fader motor femoral artery and internal cohesion lever complete aluminum blinds blades rotate feature blinds, blades have from 0 to 105 degrees flip viewpoint, free conditioning zinc steel shutters, when the blades viewpoint is 90 degrees, can achieve maximum ventilation effect, when the blade is 15 to 25 degrees viewpoint , it can be useful to avoid outdoor spy, when the blades completely closed, can obstruct the storm hit. Such as the use of electric fire control system with intermediate linkage, as auto exhaust heat gate. Blinds to bump direction of the blade to stop outside the line of sight, lighting, while blocking the line of sight at night from top to bottom of the outside world, for indoor convex blades, then the shadow will not reflect significant to the outdoors, clean assured shutters, easy to clean. Usually just wipe with a rag, cleaning with a mild detergent. Do not worry about fading, discoloration. Waterproof blinds can also be completely washed. Aluminum blinds sales, longtai metal (certified), Jiangxi blinds offered 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.