76169953
Nov 22, 2000
Aug 13, 2002
Refractory materials, namely, refractory compounds or shaped refractory products made therefrom for lining metallurgical containers, refractory blocks, refractory bricks, refractory furnace linings, ceramic shapes for use in refractory furnaces, refractory mortars, and refractory shapes
Nonmetallic Building Materials