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39.01 - Polymers of ethylene, in primary forms 3901.10 - Polyethylene having a specific gravity of less than 0.94 3901.20 - Polyethylene having a specific gravity of 0.94 or more - Ethylene-vinyl acetate copolymers 3901.90 - Other 3901.30 r This heading covers polyethylene and chemically modified polyeth lene (for exam le, chlorinated nolvethvlene and chlorosulnhonated ~olvethvlenel. It a so covers ethv ene copolymers &(f& ,&am le, ethylene-vih 1 acetat'e >op61ym6rs and ethylene- ropilene co~olvmers)in which etF,vlene is the me ominant comonomer unit. For the classi lcation of polyniers (iincluding copofjmers), chemically modified polymers and polymer blends, see the General Explanatory Note to this Chapter. P P of ethylene-vinyl and stretch The heading excludes : (a) Liquid synthetic polyethylene not meeting the requirements of Note 3 (a) to the Chapter (heading 27.10). (b) Polyethylene waxes (heading 34.04). -