1. To coordinate pre - sales chain understanding of customers and sub - contractors.

2. It is also a process in which the sales chain, commodity chain and supply chain are constructed.

3. As of this year, we have been in this business for more than ten years and have successfully built a solid supply and sales chain.

4. Therefore, how do the chain pharmacy stores appraise themselves correctly and how to solve the problem are the most urgent for the sales chain of pharmacy at present.

5. Modern store operation technique is a process in which the operation chain is continuously perfected. It is also a process in which the sales chain, commodity chain and supply chain are constructed.