The certification is CE .EU. ISO-9000&UL. DC Motor, Gear motor, Redcution motor Features: 1) Dimensions: 60, 70, 80, 90mm 2) Power: 3, 6, 10, 15W 3) Voltage(v): 12, 24, 90V 4) Speed(nS): 3000, 3200, 3300rpm 5) Reduction ratio: 3~ 200K Usage: Our motors can be widely used in medical appliance, packing mechanism, printing mechanism, cup making machine, textile machinery, automatic machine and so on ...