After weighted grading and classification, it is found that there are only 6 Class A customers, 16 Class B customers, 22 Class C customers and 13 Class D customers. There are 57 customers in total, with a total of more than 400 products.

I finally found out the reason why Zhenhe has been doing little: there is no regular marketing department like hundreds of millions of people in the company. It is through advertisers to find their own doors, and few people go out. The market of industrial products is different from that of terminal consumer goods. The terminal consumer goods are oriented to the general consumers and the advertising...