The level of marketing theory is one of the two well-known marketing strategy marketing (level marketing and depth of marketing).
Level marketing is a sky net, marketing strategies focus on training World pipe network reported that the world's steel pipe network to provide the world's steel pipe network editor World pipe network reported that the world's steel pipe network to provide the world's steel pipe network editor . The focus is to expand the marketing of the surface of the target population as open to fully tap the potential customer is 20% of customers found in the 20 80 rule. This strategy is suitable for enterprises that already have fixed customer base.