it has a second-to-none crushing performance in the work of medium-size crushing, fine crushing and super fine crushing, the machinery¡¯s pressure resistance strength is under 350mpa.\n\nthey are widely suitable for primary crushing of many kinds of mining and rock such as many kinds of ores, concrete, fireproof material, bauxite, quartzite, corundum, perlite, ironstone, basalt etc.