問題請教，現代有沒有非金屬針？比如塑料，炭纖維等等？

來源: 欲千北於 2021-10-16 22:29:26 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.