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我公司有熟橡膠,要與塑料嚙合外面加有壓環,但是不能達到一定的壓力 |
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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