China AC FAN manufacturers General Specifications of the 120*120*25 ac axial fan Material: Aluminum Housing, Plastic Impeller Bearings: Maintenance-Free Ball Bearings Motor Type: AC Shaded-pole Motor Connection: Terminals or Lead wire Dielectric Strength: 1800 VAC for 1 Sec. Insulation Resistance: 100 MΩ min.@500 V DC Operating Temperature: -30鈩?/font> to +75鈩?/font>(Ball Bearing)...