Liu Jun took Cui Bingbing and Shen Jiali to follow Song Yunhui and Liang Sishen to build a basketball court for Hope Primary School. During the break, Song Yunhui found Liu Jun and said that their unit had not obtained the certification certificate for the quality system and could not enter the procurement process. Liu Jun believed that the ISO system was formalism, but after Song Yunhui's explanation, he still agreed to certification.
