4956| 30
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墊圈是如何裝進(jìn)去的 |
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點(diǎn)評(píng)
(*Ӧ)σ懟他:;墊圈裡面也有螺紋,帶上墊圈怎麼搓螺紋❗❓
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點(diǎn)評(píng)
有道理,從鍍鋅的顏色看,應(yīng)該是這樣
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