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watership11 发表于 2014-9-28 16:50 static/image/common/back.gif 4 c% m* B1 L# j2 F# A5 B0 }2 P' |做成可涨的管体,给压膨胀,松开缩小!
小人物~ 发表于 2014-10-3 08:54 static/image/common/back.gif2 ^1 O Z9 e! G* [; ? 我刚开始也想的将芯棒做成涨开、收缩的。但该件内壁要求光滑。
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