%PDF-1.7
%
%
1 0 obj
<>
endobj
2 0 obj
<>
endobj
3 0 obj
<>
endobj
4 0 obj
<>stream
2011-08-02T07:54:00Z
2011-08-02T08:05:00Z
Microsoft Office Word
application/pdf
钢管知识大全
Lenovo User
endstream
endobj
5 0 obj
<>>>/Group<>>>
endobj
6 0 obj
<>stream
xXˎ6m
h$Hib..M
,[ĞKZ%36hY|=l?.
!1yP6Q4^QM=>?424OX.6BXo;/">jύ4*Д}[CO6=]z6OoS!٭m딠w,8
#!Gt|Yw8m/?`5sR!+;FCdf)z}{mD{@;M|d%hoewS,HBI?v4r
¾Pɨ{%((
J(('DSWb)Qz
>*j)|4hPT?m7I:GYj1;
"hAu8zdv?%gKĪhAL#vmv\JU7҄7r-b^KTqI6N7zM^Rr=/_6~v7}M-JHZ|W)r" 2P]R "ÒkFǣH?֮jwm=[5S[o$yhwwwuePj5$GsrS yq8a՜*
eHJ\!/p6Cj"Fȴ,"&ȵc-[==vbhuE.Ꮓ0kG5eb