PDLLA 羧基修饰外消旋聚乳酸聚丙交酯聚合物单体厂家发货

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Suzhou city xuan science and technology ltd

Address:Zone c, 4th floor, greengravers, wu gang district, suzhou city, jiangsu province
Tel:18576618821

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PDLLA 羧基修饰外消旋聚乳酸 聚丙交酯 聚合物单体 厂家发货