What electronics factories are there in Zhifu District of Yantai? Very urgent

There are many electronics factories in Yantai, such as Zhifu Manulife Electronics, Longkou Shuanglong Electronics Factory, Yantai Development Zone Xifei Electronics Factory, Yantai Foxconn Electronics Factory and Longkou Hengxin Electronics Factory. Most of them are factories that install circuit boards, which are moderately polluting enterprises. Pay special attention to your health when you work in an electronics factory, especially the front-line operators, who are particularly harmful to your lungs. ...