The thickness of 2.0 and 1.4, two options, the total frame is more stable, high value, high performance

Bridge -type darling, floor hidden drainage, fast drainage, zero water accumulation. A small gap between the fan and the connection of the paths, wind protection and sound insulation!

One square meter, 4 kilograms, with all the functions of system doors and windows!

90 broken bridge and sliding one square meter of 8 kg. Products in the presence of thickness (1.4mm) can be installed screens

1: 3.8 kg per square with low cost. 2: Material for a fan at a right angle is easy to make little waste universal use higher and lower reduces up reserves

85 Open type of broken bridge and sliding one square meter 6 kg goods in the presence of thickness (1.4mm 1.8mm)

85 broken bridge and sliding one square meter 7 kg goods in the presence of thickness (1.4mm 1.8mm)

1: Rectangular fan material is easy to manufacture, has low losses, reduces supply 2: you can use the special material of the double glass fan or make cuts on a single glass to make it convenient and practical 3: Pownstot to be equipped with screens full of functions, low cost of 4: 5+9+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+high -glass.

70 broken bridge and a sash one square meter 6.2 kg goods in the presence of thickness (1.1mm 1.4mm 1.8mm) (can be connected using an active corner code, you do not need to beat in the corners to do it easier and faster)