... International advanced level 2 Excellent performance 3 low operating cost 4 low consumption Zhengzhou hengjia could provide the most ... granite, basalt, limestone, pebble, cement clinker, quartz stone, iron ore, bauxite, and other minerals for fine broken.At the same ... it is also used to mechanism and manmade sand, high grade highway, railway, water conservancy, airport, building, cement, refractory, ...