1. Sources
  2. OECD International Trade
  3. International Trade By Commodity Statistics (SITC Rev. 3)
  4. 6: Manufactured goods
  5. 66: Non metallic mineral manufactures, n.e.s.
  6. 663: Mineral manufactures, n.e.s.
  7. 6637: Refractory ceramic goods (e.g.pipes, tubes), n.e.s.

6637: Refractory ceramic goods (e.g.pipes, tubes), n.e.s.

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