... and alkali.Excellent heat stability.Product ApplicationIndustrial furnace, glass furnace.Chemical industrial furnaceUtility industry furnace lining.Smelting furnaceHeat ... be level up and no irregularity phenomenon.The mortar joint between brick and brick is controlled 1. ... .You should do your best to avoid malposition, lean, mortar joint uniformity, decentring, hemstitch, straight joint, yawn, bursted, ...