In addition, by analyzing the data in the internal injection nonconforming product record card of the enterprise, we can also find that: 1) Through this product upgrade, in addition to the significant reduction in the number of products with liquid leakage and unclear printing, the number of defects such as bag edge defects and mouth tube deformation also decreased. This is a side effect improvement. The overall decrease in the number of defective products means an increase in the number of qualified products and an increase in product yields. This not only reduces the rate of complaints and improves visibility, but also improves product yields, killing two birds with one stone.