Product mane :Industrial fan, Air cooler fan ,Air cooling fans,Industrial air cooler fans,garden air cooler fan,Plant air cooler fan,pro-environment air cooler fan ,ventilation fan , draught fan 1.Frame, frames are made of galvanized board, thickness 1.0mm,galvanizing layer 160g/square meters.2.Blade, 6 pieces of blades and all the blades are..