[Scientific instrument sector fluctuated higher, Unilide and Oriental Zhongke both hit the daily limit] On September 23, the scientific instrument sector fluctuated higher during the session, with Unilide and Oriental Zhongke rising by the daily limit, Puyuan Precision Technology and Labtech rose by more than 15%, and Tencent Precision, Guoyi Company, Dianke Siyi, and Anhui Technology were among the top gainers. On the news, Huatai Securities research report pointed out that as data center networks evolve to 800G and 1.6T, the requirements for signal integrity and yield control of high-speed connectors, cables and high-end PCBs continue to increase, driving the demand for VNA testing to grow; at the same time, testing is upgraded to higher frequencies, more ports and automation, which is expected to drive the volume and price of VNAs to rise.