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为满足中小型选煤厂新建和老厂设备更新需要,由唐山煤研分院设计,大同市矿山机械厂制造的改进型XJM—4浮选机已经问世了。
In order to meet the needs of new and old plants in medium and small coal preparation plants, the improved XJM-4 flotation machine manufactured by Datang Coal Mining Machinery Factory has been designed by Tangshan Coal Research Branch.