Shuanglong Town, Changshou District, Chongqing. Baidu map shows that Chongqing Shiqiang Jade Processing Factory in Changshou District is located in Group 3, Shi Fei Village, Shuanglong Town, Changshou District, Chongqing, and its main business scope is all kinds of jade processing and sales. Jade is a mineral, including nephrite and jadeite. Usually jade refers to nephrite, which belongs to one of the most common jewels.