Smoke electric windows, light wind field Jinan giant doors, electric window exhaust Xingtai

Smoke electric windows, light wind field Jinan giant doors, smoke Xingtai electric windows provide light wind from the Jinan giant Tian Door Industry Co., Ltd .. Jinan giant light wind Tian Door Co., Ltd. (www.jgft.net) is specialized in the "fast shutter doors, rapid accumulation of doors, fire shutter doors, industrial doors," the enterprise, the company of "honesty, hard service" concept, for You provide the most quality products and services. Welcome to inquire! Contact: Li. Now more and more people are using electric window blinds electric exhaust manufacturer, but in the process of using them, we will encounter a lot of problems. If your family can not successfully put down the curtains or roll up the windows wholesale electric smoke, it may be a problem is the roller. Falling and rising curtains by force of the coil spring inside the roller to operate. If the curtain is installed too loose and tight, then when you let go of the time, it can not remain in the original position. Smoke exhaust window area and the sine of its opening angle is proportional. We all know that engineering practice is an applied science. Although sin900 = 1 electric windows smoke electricity, theory opening angle 900, the largest window exhaust smoke. The actual project turned into a horizontal exhaust window is difficult to achieve, there is no practical value or implementation costs are too high. The opening angle sin700 = 0.94, 700 in the project, but not difficult to achieve, the calculated value of about 6% of the area of ??error in the actual project is entirely possible because the calculated value of the total area required to achieve the 2% floor area rich amount of make up.