| 英文名称: | | anuf.-by-product dicyclopentadiene-conc. alkenes and ethylene-manuf.-by-product | | piperylene-cut alkenes | | alkenes, ethylene-manuf.-by-product c5-cut, oligomers,polymers with ethylene-manuf.-by-product dicyclopentadiene-conc.alkenes and ethylene-manuf.-by-product piperylene-cut alkenes |
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