CB／T 4009-2005 J类法兰铸铁0.5MPa止回阀.pdfVIP

k +0NQ C2 !#$/,!’0 )*34 kLW’’%, ),,. +0NQ , k ! $ !#$% O B UO 2 9y 67892 9y B U %HI %NO %$U %a-A !#P3Q,-d B45D232 9yB %a?- ’*536789( ’ 7ghF (BEijk!# Bl3mno!# BEi pqr st Bl3hF K uvwx By @z ! $ ’ ’ {|}~ B0 y{P3Q!# m !#n BSNq ’ c3hF B! pq{r st Bl3hF K!P3Q!# M#$. ),,)* , 45D yFj3ZEF M#$))(.,),-(*?#ZEF M#$),0-*l?-,$% M#$%%’*45DF Ba M#$%,-+) ’* , @NF!wX %o- , M#$%,-+’ ’* @NF!wXZUp M#$,/%, ),--* , IF kLW’’%, ),,.* , aOBG! %*BC %+)*O 2 9yBO$%k7 . Kk ,,, ! $ - yoj l B2 9y k ,,, ! $ yo l B2 9y %+’*G!d 2 9yBG!db ) A ) h)*r ,9j XdAA O L?EY QNQ P3W Kk k +0 ,JX % Kk k 0J)0 0J’ +( {LQ )’GB %+%*6p-G! 2 B6p )% ’ ’ 9y -G! - , %’0, ** )*Kk ’*k