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
88 Jianu is sliding
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
3: Double glazing the fan can be used or one glaze glazing can be used for tears of the bar, convenient and practical.
4: Fan -lockable fan screen for safety and protection against thefts.
5: 5+9+5 insulating glass square compression simple production
Atmospheric species