Manually adjustable shutters with double rain rain in need of ventilation, insulation regulate air flow room or other public places, it has both side frames with a set of blades and with rain dripping gutter frame and streamlined regulation of leaf constitution, it not only has the advantage of a single layer of aluminum blinds shutters pictures, but also according to the staff room temperature or ventilation quantities needed double blinds, shutters open to adjust the size of the angle. Flexible adjustment shutters, solid, and that you do not need to add a lubricant, no noise, good sealing performance. Sediment Control Manual shutters double blades from sand prevention and can adjust the size of the blade angle configuration, the blinds can not only effectively gather dust in the air shutters factory, in the rainy season when rain can play effect. Needed when the air conditioning airflow can ventilate needed. 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, 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. Electric blinds, shutters, Guangdong, longtai metal provided by Linqu longtai metallwarenfabrik. Linqu longtai Metal Products (www.wfhulan.com) strong, credible, Shandong Weifang materials processing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead longtai metal and you hand into the brilliant, for a better future!