Factory Price 6V 12V 24V Planetary DC Brushless Brush Gear Motor with Multi-Stage Gearbox Parameter:Gearbox Type: Planetary Gearbox with Straight TeethGear Ratio:1/5~1:1/721 CustomizeMatched Motor : Brushless DC Motor ,brush dc motorReducer Dia.: 16mm, 22mm,33mm, 28mm, 36mm, 40mmApplication: electric opening and