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胶丝怎样熬成胶水
更新时间: 2020-08-17 00:00:00  

方法如下:

将容器放在90-100摄氏度的水中;将聚乙烯醇称量约20克倒入容器中;加入常温水80克直到完全溶解,边加热边搅拌;配制浓度不超过20%为好,时间大约在2小时以内,即每80克水加入不超过20克聚乙烯醇。

关键词: 怎样 胶水

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