stevenlu28 wrote:因住家廁所地磚出現這黑點
u716082 wrote:應該是汙垢~用刷子刷...(恕刪)
jasion3 wrote:這是碳酸鈣,水氣滲入...(恕刪)
stevenlu28 wrote:請教版上達人,因住家...(恕刪)