With the rapid socio-economic development of China into the WTO, increasing exports, the strength of many domestic manufacturers, the scale is far from market demand, particularly in small accessories, clothing, household appliances, toys and other industry products are exported, there supply interrupted phenomenon and so on. Each product has the same peak demand, and since the strength of the limited size of the production factory, production of less than market demand, many manufacturers use domestic brand, advertising, resource sharing and other series set sales model