non-metal refractory furnace linings, fire bricks, and alumina ceramic refractory blocks; non-metal bulk material, namely, alumina ceramic refractory used for high temperature applications in the forms of brick, block and bulk material for use in making the aforementioned refractory furnace linings, fire bricks, and blocks

FURNACE-LININGS, FIRE BRICKS AND BLOCKS, AND BULK MATERIAL FOR USE IN MAKING THE SAME