What does a?

Sanfu's shelves and type B shelves are mainly to distinguish hot products and general products.
Sheels such as convenience stores, supermarkets, etc. often use the "ABC" classification method. In the "ABC" classification method, Class A is "hot selling products", Class B is "general product", C -level is "slow -selling products "". The purpose of optimization of a convenience store shelter is to choose boutique products with better quality and consumer demand in a limited display space to increase the turnover of the store.