... heat stability.Product ApplicationIndustrial furnace, glass furnace.Chemical industrial furnaceUtility industry furnace lining.Smelting furnaceHeat insulation ventilation ... level up and no irregularity phenomenon.The mortar joint between brick and brick is controlled 1.5mm ... best to avoid malposition, lean, mortar joint uniformity, decentring, hemstitch, straight joint, yawn, bursted, raw seam, warp ...