... sand, in metal and non-metal ores, cement, refractory material, bauxite, silicon carbide, glass material, building material ... used for crushing of hard and crispy materials, such as rocks, grinding materials, refractory materials, cement clinkers, quartzite, iron ores ... about our products. Zhengzhou Shuangying(Win-Win) Machinery Company mainly products jaw crusher, impact crusher, stone crusher, ...