Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils › Additives for lubricating oils

3811.21 — Containing petroleum oils or oils obtained from bituminous minerals:

Có chứa các loại dầu có nguồn gốc từ dầu mỏ hoặc dầu thu được từ khoáng bi-tum: