Recently, the hydraulic threaded cartridge valve three power modulation flow valvemicro automatic exhaust valveZhejiang manufacturing group standard review meeting was held in Zhuji store. The meeting was chaired by Director Jiang Jianping of Zhejiang Standardization Research Institute. The Standards Evaluation Experts Group was appointed by the Zhejiang Brand Construction Association to appoint core experts, certification experts and experts in the industry, friends, and research institutes, and invited Zhuji Quality Technology. Relevant leaders of the Supervisory Board attended the meeting. Yao Tong, President of Dunan Zhizhi, and Yao Haifeng, Chairman of Huayi Precision Machinery, attended the meeting on behalf of the two first drafters.