China Factory Hot sale axial flow fan AC 220v 17251 172*150*51mm exhaust ventilation cooling fan waterproof Packing details: Inside: Poly velvet Outside: Kmk reinforced carton Fan size: 172*150*51 mm Carton size: 400*340*358mm Piece: 20pcs/carton Net weight: 17.5kg/carton Gross weight: 18.5kg/carton