Section VII — Plastics and articles thereof; rubber and articles thereof
Subheading
390599
Other
Common commodities
PVB resin in primary formPoly(vinyl formal) homopolymerVinyl ether polymer in primary shapePrimary form PVB compoundHomogenous poly(vinyl ether)Unprocessed polyvinyl formalPure vinyl ether polymerRaw PVB materialVinyl formal polymers in primary statePrimary form polyvinyl ethers