Zhao changshan, a legal entity representing the zhao yangshan market supervision authority, is registered as the registration address of the zhuibo city, kuenlong township, in the city of zibo, shandong province. The scope of the operation includes fire-resistant materials, heat-preserving materials, the production and sale of fire-resistant aging materials; the construction and construction of kiln works; the development, manufacture and sale of new grinding materials; the construction of anti-conservation projects; the construction of ceramics, glass products, ceramic paints, chemical products (other than dangerous and toxic chemicals), construction materials, carbide silicon products, cement, wholesale distribution of hardware and retail products. (projects subject to legal approval may not operate without the approval of the relevant department)