I don't know where you come from and what your major is. There are one or two jewelry processing factories in Beijing. One is called Jinsha Company, near Dongsi, and the processing plant is in Changping. And there are many jewelry processing workshops in other parts of Beijing. Most of them are concentrated in Xisiyang Hutong and Xidan Jewelry Hall, but these places generally do not recruit foreigners. After all, they deal with jewelry, gold and silver every day. They generally recruit people in their hometown, village and township, and are not afraid to find them.