Turbovent Rotary Chimney Cowl TB
| 类型 | A（毫米） | B（毫米） | C（毫米） | 直径（毫米） | 高（毫米） | Vane(mm) |
| TB200 | 200 | 160 | 260 | 150 | 270 | 16 |
| TB250 | 250 | 220 | 300 | 200 | 300 | 18 |
| TB300 | 300 | 230 | 320 | 250 | 310 | 18 |
| TB350 | 350 | 250 | 350 | 300 | 330 | 22 |
*Base made of galvanized steel,cap made of stainless steel or aluminium sheet. *For roof and chimney application. *NSK bearing,with high-temperature oil. *Power free and greatly improve the natural ventilation. *With or without square base. |
