Ecoosi flexible ducting hose---Aluminum semi-rigid flexible duct was made of 100% pure aluminum. Our semi-rigid air ducts have both industrial and residential functions. Firstly, they can be used in factory workshops, warehouses, greenhouses, and architecture construction to emit smoke and heat. Secondly, it can be used in kitchens, bathrooms, and washrooms of highly intensive residences to refresh the air.
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