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Aluminum Flexible Range Hood Vent Kit Duct Specifications: 1 Expandable aluminum ducting,aluminum foil ventilation ducting 2 Fire retardant,connect to absorber with clamps 3 diameter customized Materials: Two layers of aluminum foil reinforced with high tensile spring steel wire Number of piles is up to customer's requests Features: 1 Heat and fire resistant: Class B1 (GB8624) 2 Highly flexible and compressible: rate: 10:1 3 Max air …
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