June 20，Party Secretary of Shanghai Stock Exchange、Chairman Qiu Yong and his delegation went to China Railway Construction Heavy Industry Co., Ltd. for investigation。Secretary of the Party Committee of China Railway Construction Heavy Industry、Chairman Liu Feixiang introduced the situation of the enterprise.。

Qiu Yong and his delegation visited the tunnel boring machine production line of Railway Construction Heavy Industry successively.、Drilling and blasting tunnel equipment production line、Digital Command and Monitoring Center and Exhibition Hall of Original Technology Origin Achievements，Detailed understanding of the technical features of the product、Market application and supply chain support。

After the tour，Qiu Yong and his delegation held a discussion and investigation with the leaders of Railway Construction Heavy Industry and the heads of relevant departments.，Deputy Secretary of the Party Committee of Railway Construction Heavy Industry、General Manager Zhao Hui made a special report.，Qiu Yong Promotes Scientific and Technological Innovation and Mechanism Reform for Railway Construction Heavy Industry，He spoke highly of the achievements made in promoting the substitution of domestic equipment for imports.。

Secretary of the Party Committee of Hunan Securities Regulatory Bureau、Director Li Yubai，Liu Shengjun, Deputy Director of Provincial and Local Financial Supervision Bureau，Gao Wenqi, Vice Mayor of Changsha，Secretary of the Party Working Committee of Changsha Economic Development Zone、Fu Xuming, Secretary of Changsha County Party Committee, and other leaders accompanied the investigation。