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ZYJ-270/170 prop producition drilling rig in underground coal mining2018-01-30 15:14:39 |
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DGMS approvaled 160kw cutting power EBZ160 roadheader2019-03-27 15:26:13 |
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DGMS approved EBZ160 roadheader 160kw cutting power for half rock seam2019-12-26 09:23:59 |