Yanyan Ji

Solar energy photovoltaic mosquito eradication lawn lamp

Child safety seat with detachable headrest used for vehicles in sitting and lying

Cruiser with solar power device

Baby motorcycle using photovoltaic electricity

Baby motorcycle using solar electricity and provided with motor in front wheel

Sealed liner with rubber valve of electrical driven clip connected revolving sector core in two-way pipe

Photovoltaic electricity and commercial electricity charged electric bicycle

Flange type high temperature resistant bellows stop valve

USB interface mailbox type coin-feed charging station employing photovoltaic and commercial electricity for mobile phone

Square air filter worm gear supercharging fuel saving and purifying device for motorcycle