According to the news from the special committee of China Elderly body association Gas Volleyball, on the morning of February 7, 2018, the signing ceremony of the cooperation agreement between the special committee of China Elderly body association Gas Volleyball, Zhejiang Sanmen wandeli ball Industry Co., Ltd. and Jiangsu Qidong jinbaolu sporting goods Co., Ltd. was held in the conference room of Jiangsu elderly body association. Zhejiang Sanmen wandeli ball Industry Co., Ltd. and Jiangsu Qidong jinbaolu sporting goods Co., Ltd. continued to cooperate with the special committee of China Elderly body Association for air volleyball to support the national elderly air volleyball exchange activities held from 2018 to 2022 on the basis of winning the bid for the ball in the national elderly air volleyball exchange activities in 2017.

Hua Hongxing, acting director of the air volleyball special committee of China elderly human body association and executive vice chairman of Jiangsu elderly human body association, signed the agreement with Wang Youcheng, general manager of Zhejiang Sanmen wandeli ball Industry Co., Ltd. and Lu jianchong, chairman of Jiangsu Qidong jinbaolu sporting goods Co., Ltd. Li Wenyong, Deputy Secretary General of China elderly human body association, attended the meeting; Chen Yuxin, deputy director of the special committee of China Elderly body association Gas Volleyball, Chen Honglin, Secretary General of the special committee of China Elderly body association Gas Volleyball and Wang Zhiming, Deputy Secretary General attended the signing ceremony.