6592| 14
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熱浸鋅表面有黃色是怎么回事?求助了 |
評(píng)分
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點(diǎn)評(píng)
不對(duì)?能詳細(xì)說說嗎?謝啦
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點(diǎn)評(píng)
看錯(cuò),是熱鍍鋅的,應(yīng)該是鋅缸雜質(zhì),溫度有關(guān)
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