232012 - Refractory bricks blocks tiles and similar refractory ceramic building materials (except those made - 42 Manufacturers List

2320121000 - Refractory ceramic building materials containing more than 50% MgO CaO or Cr2O3 (including - 8 Manufacturer
2320123300 - Refractory bricks blocks etc. containing Al2O3 (alumin) SiO2 (silica) or their mixturecomp - 6 Manufacturer
2320123500 - Refractory bricks blocks tiles and similar refractory ceramic building materials with alum - 4 Manufacturer
2320123700 - Refractory bricks blocks etc. with Al2O3 andor SiO2 content 50% by weight others - 3 Manufacturer
2320129000 - Refractory bricks blocks tiles etc. not elsewhere classified - 21 Manufacturer