Base metals and the alloys thereof for use in the manufacture of steel and foundry products

Base metals and the alloys thereof

synthetic graphite for industrial purposes

Refractory construction materials, not of metal; quartz

Aluminum oxides, namely, alumina, bauxite, natural graphite, zirconium oxides, namely, zirconia; ceramic powders used in manufacturing, namely, ceramic compositions for sintering; compositions for the manufacture of technical ceramics, namely, polymer compositions used in the manufacture of commercial and industrial ceramic goods;compositions for the manufacture of technical ceramics, namely, ceramic compositions used in the manufacture of commercial and industrial ceramic goods

Common metals and their alloys

Refractory construction materials, not of metal; refractory blocks not of metal; refractory bricks not of metal; bricks; furnace linings of non metallic materials; fused cast refractory blocks, not of metal; refractory blocks of corundum; refractory blocks of corundum-mullite; refractory blocks of corundum-zirconium oxide