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Refracttory Board For Electronic Industry Aliminum oxide sinter layer1.Fire proof &thermal strength are high 2.Heat conductivity is excellent 3.Thermal abrasion is good 4.Chamical Acid proof is extremly excellect 5.Anti-thermal vidration a Anti-corrosion are nice 6.Anti-thermal oxidation is wonderful 7.Refractoriness under load is quiet high (>=1700OC)CHMICAL COMPOSTION: SIC, SIO2, Al2O3 , Fe2O3Application : Various annealing kiln furnace , slads plates supportes, supports seggers Thermal radiation plate ,tub(pipe) Magnetic material smalting furnace , slads plates , supports post , seggers. Steel anneal furance,trail brick flannel coating furnace Al melting furnace , arc melting furnace ,non fero metal meting furnace linear Acid liquid recovery tank linear , filtering materail . incinerator linear refractory