The Municipal Appraisal Committee conducted a comprehensive appraisal of all counties, municipalities, municipal departments (units), and relevant units of the central and provincial governments in Germany.

The Municipal Appraisal Committee conducted a comprehensive appraisal of all counties, municipalities, municipal departments (units), and relevant units of the central and provincial governments in Germany.

Recently, the large-size honeycomb ceramics we produced were appraised by an expert group led by academicians of the Chinese Academy of Sciences, and passed the 200,000-kilometer non-destructive test of Sinotruk, becoming a supplier of Sinotruk.

[Jiuzheng Building Materials Network] "The company has participated in the research and development of high-efficiency SCR technology research and industrialization projects for heavy-duty diesel vehicle pollution emission control, filling the domestic gap and has reached the international level.