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International HS 2022 reference
3911.20

Petroleum resins, poly(1,3-phenylene methylphosphonate), in primary forms

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Related classifications

3911.10

Petroleum resins, coumarone, indene or coumarone-indene resins and polyterpenes; in primary forms

3911.90

Polysulphides, polysulphones and similar products of chemical synthesis n.e.c. in chapter 39; in primary forms

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