Jinshanmeng survey record: it is difficult to increase coal supply, and the market outlook is relatively optimistic Jinshanmeng survey record: it is difficult to increase coal supply, and the market outlook is relatively optimistic Jinshanmeng survey record: it is difficult to increase coal supply, and the market outlook is relatively optimistic Jinshanmeng survey record: it is difficult to increase coal supply, and the market outlook is relatively optimistic
