Electric toothbrush gearbox

Nowadays more and more people begin to use electric toothbrush, but there are also people question: such a strong…

Electric Bike lock geared motor

the use of low power Bluetooth technology or WiFi signal to replace the physical keys, can be based on mobile phones Distance…

Educational building blocks

Zhaowei intelligent building block built-in motor gearbox scheme adjust the parameters of each motor according to the multi-layer