1. Sources
  2. OECD International Trade
  3. International Trade By Commodity Statistics (SITC Rev. 3)
  4. 2: Crude materials, inedible, except fuels
  5. 27: Crude fertilizers other than division 56, and crude minerals
  6. 273: Stone, sand and gravel
  7. 2733: Sand, natural, whether or not coloured (excluding 28)
  8. 27331: Silica sands and quartz sands

27331: Silica sands and quartz sands

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