A certain chemical company is located in Shandong Province, and its main business scope includes: licensed projects: production of hazardous chemicals; Operation of hazardous chemicals; Gas operation.

In April 2025, the company had one liquid chlorine storage tank that required an external level measuring instrument. Previously, they purchased instrument products from other companies at a low price, but the quality was poor. The other tanks in the same tank area have been tested by Dinghua and have been used very well. This replacement installation of Dinghua instrument products. As of now, the usage effect is good.