This model is called OEM, which is a very common model. The actual manufacturer and production address should be marked on the package, and your own company can be marked as the producer or producer. Quality control can only depend on your choice of manufacturer. There are many such manufacturers, the most famous of which is Foxconn, which helps many enterprises around the world to produce electronic products or spare parts. However, it should be noted that some industries are not allowed, such as milk powder, so it cannot be processed by OEM.