If you changed, it will rust again. 螺栓鏽

來源: webuser1 於 2017-08-17 16:26:34 [] [舊帖] [給我悄悄話] 閱讀數 : (119 bytes)
回答: 請教:馬桶水缸裏的螺栓鏽了, 由 桃花好運 於 2017-08-17 12:30:52

It's natual.  Unless you change to stainless steel parts.  It also rusted after certain years.

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