楼主: sqks20
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放松螺母,一薄一厚,哪个在上面? |
发表于 2007-10-21 08:47:23
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发表于 2007-10-26 15:14:10
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应该是厚的在下面,薄的在上面
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发表于 2007-10-26 20:20:26
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