Page 175 - 《金属管》总第184期电子杂志

'15.i#ln$*JUii£$1mHHI.H}E'Jit!?.Jtti5.J#l~tl'.1B~;f!!II~lm~, ciil!?.25000
•~*,~••~,••*~-••-••~-~~~~••mm.aa
1t1Jm:i'.E~o .±~!:EFWF.9U•!l!llmamm. Wi!!!Rmm. BG.9Hmffl
mamm.Gw•~mtt~••mmm.~•~*~m~a&~••••
(1 2mm.¥:sosmffi)fflttaAo *ffll50900 1: 2oooOOll,r-/i!tSJiii$, ffll~
~•~as§fil~•.F•~•w••-~m~••~mffl-•~•€•
§~Affio
0E'.la~·~A~*-H*~--~-~M.@*••·~~JiW
$0 !l!H~li!tSll:i'.Effl~-~:i'.E~~Ji~lll§~Btf~ill, •-;Jit~A:tffl~ill
~RW.~9~m*.-ft~a§ffiM~o~Eff~~~&Rftill~F~
~~Jlt'F~fi~jl[~il!?.f:i'L, ~ Btfil~~iU 00 PH;,~ 1:kfflP ~ffif~ffl~M o
d:rt.J~'Fi/ii\ffi, ~:t.J~mt~•, ~!R§'frUm**o =+-1!!:!~a#H~
m••~Ji~Btftoft$~~Ji#ff,m~~-~~~on$A•~-~
i/ii\.§~.m•.~•-~1£~••, ~•m~§*, m•~-~~~-
"i'J!J.mnij~rli"fmffl**o n$AP,ii;J)Jffilll~/i!tS, ~c:p~ffl'*fflllPBt~
~~-€~!R§, ~-~.g.pJj;iJii\~fF, ;l=!;•mtmo

tiffin$ffl.iilt&Ui!fiPl~5J 13801452025 13813193343