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 (two fused plants ,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 include brown fused alumina95%, brown fused alumina98%,white fused alumina, black fused alumina, compact fused alumina, semi-friable fused alumina, micro crystalline fused alumina, calcium aluminate etc. we have passed iso9001-2000 quality management system certificate. rs brown fused alumina 98% is a new corundum product used to solve the problems in the process of the traditional brown fused alumina 98% replacing the white fused alumina and tabular alumina according to the practical needs of refractory manufacturers and practical experience, which is jointly developed by the company and luoyang institute of refractories. with high-purity alumina bauxite as main raw materials, rs brown fused alumina 98% is made by a special technique in electric arc furnaces with high temperature above 2300¡æ and refining with longer time.it is characterized by high temperature resistance, corrosion and erosion resistance, low apparent porosity and stable thermal stability performance¡£ it solves such problems as bursting, crazing and pulverising in the process of brown fused alumina 98% replacing aluminum-oxygen based corundums such as white fused alumina. rs brown fused alumina 98% is the ideal product which can substitute white fused alumina, compact fused alumina and tabular alumina in china . rs brown fused alumina 98% sand (barmac plastic) and micropowder (acid washing) can be widely used to manufacture variety of shaped refractory material products, corundum castable refractory,and other monholithic bulk refractory and caustic-burned corundum refractory products. specification chemical composition(%) al203 fe203 si02 ti02 tc 0-1mm 97.5min 0.3max 0.5max 1.0max 0.1max 1-3mm 97.5min 0.3max 0.5max 1.0max 0.1max 3-5mm 97.5min 0.3max 0.5max 1.0max 0.1max 5-8mm 97.5min 0.3max 0.5max 1.0max 0.1max 8-12mm 97.5min 0.3max 0.5max 1.0max 0.1max 180mesh-0 97.5min 0.3max 0.5max 1.0max 0.15max 220mesh-0 97.5min 0.3max 0.5max 1.0max 0.15max 320mesh-0 97.5min 0.3max 0.5max 1.0max 0.15max if you have any requirement, please don't hesitate to inform us. duzude521@rs-abrasive.com . hope we can establish stable long terms business relationship with each other. sales manager : du zu de tel:86-379-65285886-805 mobile phone:13383884596 fax:86-379-65285889 http://ww