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● 一种2-氨基丁酰胺的生产系统

● 一种高纯度乙交酯的合成方法

● 一种高效合成乙交酯的系统及方法

● 一种开环聚合制备聚酯、聚酰胺及其共聚物的方法和装置

● 一种可持续给热的膜式脱除挥发分装置

● 一种可逆流传热的降膜结晶器

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