我用zinc sulfate ZnSO4 都係會有d 黑色野 但電鍍唔到
更新1:
冇接錯 thanks 但係我想問+ 唔同ga salt 落去有咩用?
冇接錯 thanks 但係我想問+ 唔同ga salt 落去有咩用?
收錄日期: 2021-04-30 20:44:26
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070823000051KK03837