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塑料擠出螺絲孔,供應商說要開孔1/4,但是塑料打螺絲開孔1/4就滑牙 |
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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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