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BP90
Spiral Ductwork Ventilation ducts pressed bends elbows for HAVC system
Air duct pressed bend halves used for ventilation system
.size: 45°,90°-100/125/150/160/200MM
2.material: galvanized steel sheet
3.zinc: 275 or 180
4.Surface: galvanized or according to the consumer's requirement
| Size | D |
| 100 | 98 |
| 125 | 123 |
| 150 | 148 |
| 160 | 158 |
| 200 | 198 |
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