Specializing in the research, development,production and sale of a variety of flexible wearresistant materials (e.g. black corundum, asloknown as black fused alumina). The annual output of black fused alumina section sand, grit and micropowder is over 30,000 tons, occupying over 60% of the domesticmarket. Collaborating with professional institutions and technology-leading enterprises domestic and overseas,ZYS has upgraded its products and technologies, and has built a complete value chain in special ceramicsindustry. Equipped with top technology and strongestcore competence, ZYS has become the leader in global black fused alumina industry and one of the mainsuppliers to world renowned grinding product manufacturers.