September 5, 2023 in the afternoon，China Construction Machinery Industry Association（Short name：Association）President Su Zimeng、Lv Ying is deputy secretary general、Li Chunsheng, Assistant Secretary-General and Director of Member Services、Zhu Fengzhen, Vice General Manager of Beijing Tianshi Huagong International Exhibition Co., Ltd., and His Delegation Visited China Hydraulic and Pneumatic Seals Industry Association（Short name：Fluid and Gas Tightness Association）。Du Xudong, Chairman of the Fluid and Gas Tightness Association、Liu Weilin Full-time Vice Chairman、Secretary General Zhao Manlin、Warm reception by Deputy Secretary-General Rao Tao and others，And held talks and exchanges.。

Chairman Du Xudong extended a warm welcome to President Su Zimeng and his delegation.，He reviewed the previous exchange of visits and cooperation between the two associations.，The general situation of the Association of Fluid and Gas Tightness is introduced.、Main work、International cooperation、Market situation of fluid power industry at home and abroad.，At the same time, I would like to thank President Su Zimeng and the Association for their long-term support for the work of the Association.，We look forward to further cooperation between the two sides in the future.。

President Su Zimeng introduced the domestic and foreign market situation and future development trend of the construction machinery industry.，As well as the related work carried out in promoting the development of new energy construction machinery.，It fully affirmed the development of China's liquid and gas sealing technology and key enterprises in recent years.，It expresses the multi-directional cooperation between the two associations.、Willing to jointly promote technological progress in the industry and strengthen the industrial chain。

Participants from both sides also fully exchanged their experience in hosting the meeting.，The future direction of cooperation was discussed.。