chicken house ventilation fan

1) Fan Frame: made from highly galvanized steel sheets in order to assure highest strength and strong resistance to corrosion. 2) Blade: 6 pieces stainless steel blades and the fan has all passed the experiment of homeostasis with big air volume, without deformation n, no breaking, attractive and durable. 3) Belt Pulley: The V type belt pulley is aluminum magnesium alloy injection moulded, light weight, high-strength. 4) Bearing: France imported bearing, high intensity, low