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OECD International Trade
International Trade By Commodity Statistics (HS88)
28: Inorganic chemicals, precious metal compound, isotope
2804: Hydrogen, rare gases, non-metallic elements
2804: Hydrogen, rare gases, non-metallic elements
280410: Hydrogen
280421: Argon
280429: Rare gases other than argon
280430: Nitrogen
280440: Oxygen
280450: Boron, tellurium
280461: Silicon, >99.99% pure
280469: Silicon, <99.99% pure
280470: Phosphorus
280480: Arsenic
280490: Selenium
2804: Hydrogen, rare gases, non-metallic elements
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