| 英文名称: | | Vinyl acetal polymers, butyrals, sulfonated, sodium salt | | Polyvinyl alcohol, butyraldehyde acetal, sulfonate, sodium salt | | vinyl acetal polymers, butyrals, sulfonated, sodiumsalt | | Vinyl acetal polymers,butyrals,sulfonated,sodium salt | | Polyvinyl alcohol,butyraldehyde acetal,sulfonate,sodium salt |
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