Explanatory notes
… 3904.90 ‑ Other This heading covers poly(vinyl chloride) (PVC), vinyl chloride copolymers, vinylidene chloride … blends, see the General Explanatory Note to this Chapter. PVC is a rigid colourless material with limited heat … etc. to make useful plastics. In flexible sheet form PVC is used widely as a waterproof material for curtains, …