A staff member of Xi'an Daily Chemical Industry Company, which originally produced "Shandandan" and is now reorganized into Xi'an Nanfeng Daily Chemical Co., Ltd., said that from 1991 to 1993, the Shandandan brand The sales volume of washing powder has remained above 20,000 tons, and began to decline in 1994. Starting from 1997, the "Shandandan" brand advantage became increasingly weak. In 1998, "Shandandan" stopped being sold on the market after more than 20 years. . This sudden change is called by many outsiders "the blooming and falling of mountain dandelions". At present, the trademark "Shandandan" is still there, but it is difficult to say when the flowers of "Shandandan" will bloom again and reveal their fragrance to the market again. Readers such as Mr. Fang, who is engaged in business management, pointed out that "Shandandan" has "disappeared" today, which should cause deep thought.