樓主: 妖洞兩拐
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直徑2-5米的軸，緊固螺紋螺距用多大的合適？ |
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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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發表于 2021-12-13 01:45:03
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