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50 butterfly cone fan

1. The surface of fan blade is smooth and not easy to accumulate dust;

2. Tensioning: The automatic tensioning device used can improve the transmission efficiency, reduce the maintenance frequency and prolong the service life of belt;

3. The air duct is divided into bell mouth and narrowed duct. The narrowed duct is selected, which is more suitable for poultry house with compact gable wall space.

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