On April 20, 2021, National Materials (Beijing) Testing and Certification Service Co., Ltd. (hereinafter referred to as: National Materials Certification and Inspection) according to the "Quality Grade Evaluation of Granulated Blast Furnace Slag Powder Used in Cement and Concrete" issued by China Building Materials Federation 》Standards and relevant certification regulations in my country, together with the slag powder branch of the China Building Materials Market Association and industry experts, went to Nanjing, Jiangsu to inspect Nanjing Nangang Jiahua New Building Materials Co., Ltd.'s first domestic slag powder quality grade factory inspection, which marks the country’s slag powder The quality grading has entered the implementation stage.

The standard "Quality Grade Evaluation of Granulated Blast Furnace Slag Powder Used in Cement and Concrete" was led by the slag powder application branch and was officially released on January 9, 2020 and implemented on June 10. As a technical support unit, National Materials Certification and Inspection enhances corporate brand value through third-party certification services. Both parties play their respective advantages to promote the quality of the industry, enhance the competitiveness of the industry, and achieve the goal of "raising standards, strengthening quality, and creating a brand", and offer suggestions for improving the quality of products in the industry and establishing brand companies.

On the morning of the 20th, the National Materials Certification and Inspection Team formally stationed in Nanjing Nangang Jiahua New Building Materials Co., Ltd., and began a three-day (April 20-22, 2021) factory inspection. Factory inspection team leader Wang Dan, inspector Lu Qingxiu, technical experts Li Jinlin, Kang Ming, Nanjing Nangang Jiahua New Building Materials Co., Ltd. General Manager Chen Youbin, Deputy General Manager Fang Lide, Production Department, General Department, Quality Department, Anjianhuan Other relevant department heads, Han Xiaohua, Lu Siwen, and Han Zhenhong, the secretariat of the slag powder application branch participated in the first factory inspection as observers. At the first meeting before the slag powder quality level certification, the inspection team leader Wang Dan introduced the main basis, content and process of the slag powder quality level certification inspection, and made a confidentiality commitment to Nangang Jiahua on behalf of the inspection team.

After the first meeting, according to the inspection plan, the inspection team first made an overall inspection of the Nangang Jiahua factory, including raw material stacking, production process, loading and delivery process, and laboratory quality inspection process. Whether the factory has the ability to guarantee the consistency of the quality of the certified products produced in batches.

As the first batch of slag powder enterprises to carry out slag powder quality grade certification, on behalf of Nangang Jiahua, general manager Chen Youbin welcomed and thanked the inspection team for the visit and review, and hoped that the slag powder quality grade certification review work will benefit the development of the enterprise and the entire industry. Play an active and promoting role.Slag powder is an important mineral admixture for high-quality and high-performance concrete. This time, National Materials Certification and Inspection and the Slag Powder Application Branch have passed the slag powder quality grade certification work and put forward higher requirements for general slag powder producers. While improving the quality stability of my country's slag powder products and the overall image of the industry, it also plays a positive role in improving the quality management level of production enterprises.