Features: 1) Dimension:50*50*15mm,75*75*30mm, 97*94*33mm, 120*120*32mm 2) Voltage: 12V,24V 3) Bearing type: sleeve or ball bearing. 4) High efficiency and low noise 5) Large volume flow and long life expectancy Features: 1) Dimension:50*50*15mm,75*75*30mm, 97*94*33mm, 120*120*32mm 2) Voltage: 12V,24V 3) Bearing type: sleeve or ball bearing. 4) High efficiency and low noise 5) Large volume flow ...