Synthetic precious stones24317100-0Basic inorganic and organic chemicals
Synthetic semi-precious stones24317200-1Basic inorganic and organic chemicals
Basic organic chemicals24320000-3Basic inorganic and organic chemicals
Hydrocarbons24321000-0Basic inorganic and organic chemicals
Saturated hydrocarbons24321100-1Basic inorganic and organic chemicals
Saturated acyclic hydrocarbons24321110-4Basic inorganic and organic chemicals
Methane24321111-1Basic inorganic and organic chemicals
Ethylene24321112-8Basic inorganic and organic chemicals
Propene24321113-5Basic inorganic and organic chemicals
Butene24321114-2Basic inorganic and organic chemicals