1. Sources
  2. OECD International Trade
  3. International Trade By Commodity Statistics (SITC Rev. 3)
  4. 8: Miscellaneous manufactured articles
  5. 87: Professional and scientific instruments, n.e.s.
  6. 874: Measuring, analysing & controlling apparatus, n.e.s.
  7. 8744: Apparatus for physical or chemical analysis
  8. 87441: Gas or smoke analysis apparatus

87441: Gas or smoke analysis apparatus

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