Blinds prices, longtai metal shutters by Linqu longtai Hebei Metal Products. Linqu longtai Metal Products (www.wfhulan.com) is specialized in the "blinds, aluminum air conditioning grille, pvc fence, antique gazebo, wood flower" of the enterprise, the company of "honesty, hard service" concept provide you with the highest quality products and services. Welcome to inquire! Contact: Li Zongbiao. But modern shutters are invented by the Americans, called John Hampson and on August 21, 1841 to obtain the patent. Electronically controlled blinds shutters generally relatively wide, generally used for indoor and outdoor shading, ventilation. More and more people agree with venetian blinds curtain also evolved from. Venetian walls feature benefits and more, and very beautiful picture aluminum blinds, generally used for high-rise buildings. Shutters (louvre), window blinds installed. Different from the blinds. Similarly blinds curtains, blinds blade smaller price to be collapsed, our television or everyday common. The installation process does not go smoothly switch electric shutters installation process does not go smoothly switch found blinds should check is not a problem with the installation of locks. Remove the latch plate tongue and groove with a chisel repair blinds, adjust the position of the door latch opening and then install the bolt plate. Question three, the installation process is not perpendicular to the electric side of the hole caused by the installation process is not perpendicular to the electric side of the main entrance is no piece looking straight skids should rework pad level, with a long tape measure and then install the correct mat board.