220V 40W furnace fan air blower small centrifugal fan centrifugal fan boiler fan fan heat sink1. Metal shellPrecision stamping, high temperature paint treatment, no rust, beautiful appearance2. Pure copper motorHigh-quality pure copper motor, closed bearing cover, high dust-proof, class H insulation, high temperature resistance, quiet, long service life, and can be connected at work.3. Multi-blade impellerThe impeller has a multi-wing structure, and the mold is stamped and formed in one piece. After debugging the static and dynamic balance, it ensures smooth operation, low noise and large air volume.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it