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| 脲烷树脂 | |||
| 尿烷树脂; 聚氨酯树脂; 氨基甲酸乙酯树脂 | |||
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urethane resin : 4 phrases in 3 subjects |
| Plastics | 1 |
| Polymers | 2 |
| Technology | 1 |
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