鹤壁大块煤受用户青睐鹤壁矿务局主要生产动力用煤，多数矿井有完善的筛选系统，生产混块、混中块、末煤和混煤等品种。１９９３年以来，由于多方面的原因混块和混中块产品销路不畅，各矿被迫改变生产工序，只生产混煤。然而，鹤壁三矿和五矿原来为供应某些个体企业而拣选... Hebi bulk coal favored by users Hebi Mining Bureau mainly produces power coal, most of the mine has a sound screening system, the production of mixed pieces, mixed in blocks, the end of coal and mixed coal and other varieties. Since 1993, due to various reasons, the mixed block and mixed block products sold poorly and the mines were forced to change the production process and produce only mixed coal. However, Hebi San Minmetals and Minmetals originally chose to supply some individual enterprises ...