A modern and popular production method in which the purchaser provides equipment and technology, the manufacturer provides manpower and space, the purchaser is responsible for sales, and the manufacturer is responsible for production. OEM production, that is, OEM production, has also become fixed-point production, commonly known as OEM. The basic meaning is that brand producers do not directly produce products, but use their key core technologies to design and develop new products, control sales channels, and specific processing characters entrust other manufacturers of similar products to produce through contract ordering.