Subheadings 3
3911.10 Petroleum resins, coumarone, indene or coumarone-indene resins and polyterpenes; in primary forms 3911.20 Petroleum resins, poly(1,3-phenylene methylphosphonate), in primary forms 3911.90 Polysulphides, polysulphones and similar products of chemical synthesis n.e.c. in chapter 39; in primary forms
Industry
This code belongs to the Plastics & Rubber industry.