3248| 5
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尼龍管的回彈角度 |
點評
這個溫度給多少呢!
冷定型是什么工藝
謝謝
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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