发布时间:2025-02-01 00:11:30
以下为pvc软管配方,供参考:
聚氯乙烯树脂:100;
DBP:10;
环氧增塑剂:5;
硬脂酸钡/镉:1;
DOP:30;
己二酸二辛脂:5;
有机锡:1.5
家中的铝合金门窗旧了,但材质很好,哪位高手指点一下,上海哪里有做翻新业务的
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