Shuangyashan is a major center for coal mining, Shuangyashan also produces steel, lumber, chemicals, building materials, textiles, electric machinery, and food products.
Shuangyashan is a major center for coal mining, Shuangyashan also produces steel. Shuangyashan is a major center for coal mining, Shuangyashan also produces lumber. Shuangyashan is a major center for coal mining, Shuangyashan also produces chemicals. Shuangyashan is a major center for coal mining, Shuangyashan also produces building materials. Shuangyashan is a major center for coal mining, Shuangyashan also produces textiles. Shuangyashan is a major center for coal mining, Shuangyashan also produces electric machinery. Shuangyashan is a major center for coal mining, Shuangyashan also produces food products.