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瓶蓋螺紋,參賽作品 |
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點評
真正瓶蓋模具是磨出來的,高光潔度,易退模。
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小黑屋|手機版|Archiver|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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