97182538
Dec 21, 2021
Ceramic refractory material, namely, ceramic refractory construction and repair materials in the nature of bricks, refractory mortars, fired refractory materials, refractory shapes, refractory construction materials, not of metal; ceramic refractory bricks, refractory mortars, fired refractory materials not of metal, refractory shapes not of metal, refractory construction materials not of metal, all for coke oven walls; ceramic refractory material made of double fuse silica for coke oven walls and high temperature processes in industrial use
Nonmetallic Building Materials