this kind of brown fuesd alumina abrasive is quenched in high temperature during processing.main particular coefficient of expansion, finer water affinity,high toughness and bigger strength. it solved crackled of abrasive, raised grinding efficiency and grinding precision during processing.especially used for making high grade bonded grinding tools and coated cloth. furthermore, our company , henan ruishi special refractory co., ltd. is established according to the modern management in 1993. as one of the main manufacturers and exporters for abrasive, refractory materials and metallurgy industry in china. we have six plants (one fused plant ,three processing factories, one special refractory material plant,one metallurgy material plant,one acid washing and water washing plant, and sales department ).we can produce 80,000 tons annually. our products are main exported italy, france, russia, american, japan, spain ,canada ,korea and so on. we have strict control about company & quality;our service is full-around and first-class. so we¡¯re you wise choice.don¡¯t hesitate to contact uscontact person: ms. liang xiaofei(sales manager) helen(at)rs-abrasive.com