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. 667: Pearls, precious & semi-precious stones
  7. 6674: Synthetic, reconsti. (semi-) precious stones, not set
  8. 66741: Piezo-electric quartz

66741: Piezo-electric quartz

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