一些商业图纸，相互交流，共同进步
data/attachment/forum/2005-1/20051718736779.jpg<br>data/attachment/forum/2005-1/20051718737832.jpg<br>
data/attachment/forum/2005-1/20051718857411.jpg<br>
data/attachment/forum/2005-1/20051718858589.jpg<br>
data/attachment/forum/2005-1/200517181021574.jpg<br>
data/attachment/forum/2005-1/200517181022752.jpg<br>
这个表现是不是做的很仓促？
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