鑰匙生鏽為什麼是藍色的 - 生活
By Todd Johnson
at 2010-07-06T00:00
at 2010-07-06T00:00
Table of Contents
我家有一把放了很久的喇叭鎖的鑰匙 前幾天拿出來用已經生鏽了 整支鑰匙幾乎都是藍色的 請問那是何種物質 有毒嗎 (顏色偏藍色不太像綠色 不確定是不是銅綠) 另外鑰匙的材質通常是何種作的
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生活
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By Hedda
at 2010-07-10T21:10
at 2010-07-10T21:10
By Tracy
at 2010-07-07T17:01
at 2010-07-07T17:01
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