82%SiC+7%Soil+5%Bentonite+3%Al₂O₃+1%MnO+0.5%Graphite+0.5%Yellow Dextrin+1%Other Chemicals,
matched with Original Osthoff burner; 20,000 hours lifespan, each face polished, each brick individually carton packed, 24pcs bricks packed in one bigger carton.




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