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Coal mining has a long history in China. According to historical records, since the Song Dynasty, China has had a relatively complete coal mining process. Therefore, China's coal mining technology has
The basic characteristics of China's natural resource composition are rich coal, lean oil, and low gas, which determines the status of coal in primary energy. China's total coal resources are 5.6 tril
There is another name for the electric mucking loading machine is a small slag picker. The motor power of the small slag picker is 11KW, 15KW, 18.5KW, 22KW, etc., and the power of the electric drum is