… Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, …
Explanatory notes
… 39.11 ‑ Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, … methylphosphonate) 3911.90 ‑ Other This heading covers the following products : (1) Petroleum resins, … indene or coumarone‑indene resins and polyterpenes constitute a group of resins, not highly polymerised, made …