... . LUYANGWOOL® Ceramci Firebrickis made from high-grade and high purity refractory powders and materials. During the process of production, organic ... various furnaces in the industry of metallurgy,petrochemical,ceramics,machinery and building materials.For instance:the cracking furnace,conversion furnace, ... more information,please contact us ! Ceramci Firebrick( high quality and competitive price)