The 7th China Electronic Information Expo opened in Shenzhen on April 9th, with over 1600 exhibitors from home and abroad participating. At every expo, audiences and media actively seek out new things. At this expo, we can see new changes such as traditional hardware manufacturers transforming into the service sector, as well as new technologies such as flexible display screens that can be folded three times. Shenzhen Yunfeng Purification Technology Co., Ltd. is an excellent supplier of purification equipment for operating rooms, pharmaceutical factories, purification rooms, automation equipment and other workshops. The exhibited equipment includes primary filters, high-efficiency non partition filters, high-temperature resistant high-efficiency filters, W-shaped filters ffu、 Air shower room, medium efficiency filter, high-efficiency partition and other purification equipment. During the exhibition, 11 contracts were signed with customers, totaling 3.7 million yuan. Among them, the total contract amount of high-efficiency filter in CSOT dust-free workshop was 560000 yuan, and the total contract amount of clean workbench was 680000 yuan. The air shower room, clean workbench, ffu and other purification equipment signed with Zhouhei duck in South China were planning a workshop, totaling 1.35 million yuan. During the exhibition, crowds of people poured into the scene to negotiate with customers, and laughter continued