"Quaternary" is in the HS Code "2923"
Quaternary Ammonium Salts And Hydroxides ; Lecithins And Other Phosphoaminolipids
The daily puzzle:What does '*****' mean in the following text?
"***** is a term which can refer to one of the main sections into which the text of a book is divided. an administrative division of an organization, usually local to a specific area."
The answer and more