Taiwan SanJu SJ1725HA2 square-AC axial fan

frame:aluminum ADC-12
Bearings:oil bearing&double ball bearing
Voltage:AC 110 v 220 v 380 v 440 v
Life:60000 hours at 20 ℃-ball bearings
30000 hours at 20 ℃-oil bearing
Working temperature: -20 °C ~ 85 °C Normal humidity
Storage temperature:-30°C～140°C Normal humidity