| 英文名称: | | Acetic acid ethenyl ester,polymer with ethenol,cyclic acetal with butanal | | Polyvinylbutyral,vinyl alcohol,vinyl acetate copolymer | | Acetic acid ethenyl ester, polymer with ethenol, cyclic acetal with butanal | | Polyvinylbutyral, vinyl alcohol, vinyl acetate copolymer | | acetic acid ethenyl ester, polymer with ethenol,cyclic acetal with butanal |
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