We are Electronic Device Factory at Shenzhen of China Since 2017,We are Focusing on Manufacturing Electronics Products,such as 3D Pens, USB Chargers, Filling Machines and glass bottles etc.Quality is always our company firstly thing to do, We Only do high quality Products from the Process of Materials/Material QCProduction and production Testing,Packing.Each of our Raw material suppliers including Hardware metals /Glass/Plastic and Silicon...