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| 聚氯乙婦合成橡胶 | |||
| 聚氯乙烯合成橡胶 | |||
| 氯乙烯橡胶 | |||
| 氯乙烯类橡胶 | |||
| 聚氯乙烯橡胶 | |||
| vinyl chloride rubber: 5 phrases in 3 subjects |
| Chemistry | 1 |
| Plastics | 3 |
| Technology | 1 |
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