The gravel screening sand making production line is configured and installed by Qingzhou Okeno Machinery Co., Ltd., equipped with our high-yield European version counter breaking+jaw crusher, and combined with elliptical vibrating screen to form a reasonable crushing production line, which is suitable for granite, limestone, dolomite, calcite, basalt, diabase, guami, andesite, iron ore, copper ore, gold ore, molybdenum ore, lead zinc ore, tungsten ore, manganese ore and other materials.