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| 乙烯塑料 | |||
| 乙烯基塑料 | |||
| 乙烯基塑料; 乙烯烃塑料 | |||
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| 聚氯乙烯塑料 | |||
| 乙烯基塑料 | |||
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vinyl plastics : 20 phrases in 5 subjects |
| Oil / petroleum | 2 |
| Plastics | 3 |
| Polymers | 2 |
| Technology | 12 |
| United States | 1 |
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