HS Code "vswin com tỷ số ma cao xkx" Search results (2)

Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods containing, by weight, singly or together, > 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2O3

Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods (excl. containing, by weight, singly or together, > 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2O3, containing, by weight, > 50% alumina, silica or a mixture or compound of these products and those of siliceous fossil meals or similar siliceous earths)