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Visit Durkee at CRH 2026: Experience Sustainable Air Dispersion & Insulation Solutions in Beijing
Visit Durkee at CRH 2026: Experience Sustainable Air Dispersion & Insulation Solutions in Beijing
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DURKEE at AHR Expo 2026 – Non-Rigid Air Duct & Thermal Insulation Solutions
|  |  |  |  |  |
| Round-O | Half-round-D | 1/4 round-Q | Ellipse-E | Rectangle -S | Conics -C |
| Round | Half-round | Large half-round | Quarter round | Ellipse | Rectangle | Conics | |
| I | ● | ● | |||||
| N | ● | ● | ● | ● | ● | ● | ● |
| N-M | ● | ● | ● | ● | ● | ● | ● |
| N-S | ● | ● | ● | ● | ● | ● | ● |
| L | ● | ● | ● | ● | ● | ● | ● |
| L-M | ● | ● | ● | ● | ● | ● | ● |
| L-S | ● | ● | ● | ● | ● | ● | ● |
| F | ● | ● |
| Shape | Diameter(mm) | Length(m) |
| Round-O | 152,203,254,305,356,406,457,508......1778,1829 | per project need |
| Half round-D,large half round-HD | 152,203,254,305,356,406,457,508......1473,1524 | per project need |
| 1/4 round-Q | 152,203,254,305,356,406,457,508......1473,1524 | per project need |
| Ellipse-E | (305,406,508,610,711,813,1640)x(1016,1524,2032,2540,3048) | per project need |
| Rectangular-S | (559,610,660,711,762......3200,3404,3708)x(406,457,508......762,813) | per project need |
