Ventilators include arc (mansard) and thin two categories of 12 models of ventilation louver.
1-10-type arc (broken line) type ventilation louver, Code: TC1-10;
11,12 Slimline ventilation louver.

Characteristics and working principle
Ventilation louver using hot wind pressure and wind effects of indoor and outdoor temperature difference caused by the formation of natural ventilation to achieve ventilation (composition)

The main technical parameters
1, the base flow coefficient μ≤0.84
2, wind load <1.0K
3, the maximum load of snow ≤0.4KN / m2
4, suitable ambient temperature -40 ℃ -80 ℃
5, the maximum wind load <36m / s