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體育比賽的花劍,劍條的工藝不能滿足一致性要求,可否精鍛模一次成形? |
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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