90303462
Nov 6, 2020
Industrial molten metal furnace insulation made of ceramic enamel fiber; Insulating refractory materials; Material for thermal insulation and fire protection, namely, fire-resistant composite panels made of aramid, glass, carbon or ceramic fibers; Mineral wool for use as a building insulator; Slag wool for use as a building insulator
Rubber GoodsRefractory blocks, not of metal; Refractory castable mixes, not of metal; Refractory furnace linings, not of metal; Ceramic shapes for use in refractory furnaces
Nonmetallic Building Materials