Detailed Product Description
1. silent flexible ventilation duct durable material made of flexible duct+insulated fibreglass+ aluminium foil..
2. Apply for low /medium / high pressure, use for air ventilation in each environment .
3. Rectangle style, and easy to install .
4. Fireproofing, at high temperatures or in case of fire , no toxic gas emitted .
5. Easy to delivery .
6. Our price is lowest , the quality is perfect , and the delivery will be prompt .