Glass curtain wall open fan size what is the requirement?
Long and wide are generally within 1.5M on the line, more than belong to the large window, according to my company to do a lot of electric window device works, there is little more than this size, but many of the size of the skylight is much larger than this
Generally open wide * high size of 1.0 ~ 1.5 m * 1.2 ~ 1.6 m, the principle to meet the ventilation needs can be opened too large or lead to open hardware specifications increase, the cost is also rising, and manual opening and closing will be very difficult.
600 * 600 600 * 900 of these two more different specifications I have not done
