发布时间:2025-01-17 21:31:55
你用的是双组份的还是单组份的啊,双组份硅胶是一定要加固化剂的,做指纹膜的硅胶是加成型硅胶HF-7509,比例是1:1的,没有两者混合是不会固化的!
老式手动印刷机上小学时记得老师在硫酸纸上写字然后印成试卷我想看下这些印刷的过程
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