On June 6, 2019, 13 people including Huang Li, President of China General Machinery Industry Association, Sui Yongbin, honorary president, Zhang Yubao, vice president and secretary general, and Zhang zonglie, vice president, visited China Foundry Association for investigation and exchange. 14 people including Zhang Libo, President of China Foundry Association, Zhang Zhiyong, executive vice president and secretary general, fan Qi, executive vice president and Secretary General of China Federation of exhibitions attended the meeting.