大部分國家的硬幣都是鎳合金,中國也是
所有跟帖:
• 我說錯了,當時日本是做電子管需要鎳。 -走資派還在走- ♂ (0 bytes) () 03/21/2021 postreply 02:38:23
• 我說錯了,當時日本是做電子管需要鎳。 -走資派還在走- ♂ (0 bytes) () 03/21/2021 postreply 02:38:23
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