KRUZITE
Fire Brick, Special Shapes of Fire Brick, Special-Shaped Arches for Furnaces((, Material Ground for Use as Mortar for Laying of Brick in Furnaces, Material in a Burned and Ground-Up Condition to Be Used for Laying Up Parts in Furnaces, and Plastic Cement for Use in Furnace Construction))
Registered · November 10, 1923 · 71188204 ·