首页 GBT20878-2007不锈钢和耐热钢 牌号及化学成分

GBT20878-2007不锈钢和耐热钢 牌号及化学成分

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GBT20878-2007不锈钢和耐热钢 牌号及化学成分 rcs 77.140.20 H 4 0 ffiffi 4'ltr -lu R+til tril tril X ffi ttr cB/T 20878-2007 ft# ce/r 422s-7s84 4+frtFl fn ffi-f f*! fFJ H4 + e-tr # Fl,l> Stainless and heat-resisting steels- Designation and chemical composition 2007-03-0e fr.fr 2007-10-01 *tE ffi tr#...

GBT20878-2007不锈钢和耐热钢 牌号及化学成分
rcs 77.140.20 H 4 0 ffiffi 4'ltr -lu R+til tril tril X ffi ttr cB/T 20878-2007 ft# ce/r 422s-7s84 4+frtFl fn ffi-f f*! fFJ H4 + e-tr # Fl,l> Stainless and heat-resisting steels- Designation and chemical composition 2007-03-0e fr.fr 2007-10-01 *tE ffi tr#AR*ilEilEilXffiEffiB&&&E,H.Eiw ! -r'j'H'.3l=F?x^#*r*1'#*yzo'? E frT r y F B E i l A f f i I E + h H 4 * f r * f T- 6rrt / {f a ' / ' /arfz GB/T 20878-2007 FI +ffi &fl E W ffi-+ e.4L+&rl& trEi€H Tftil,bir 6 ffi ffifr ffi Rff (€ ffi fi € fr + R ffi ) P # tn Erfxffi" /aaal.,frn EHfr ft ^ ffi IER€&H, 6 €EStr4,H T i! fr " #ffi# H gffiz' H E, ft# GB/T 422s-rs84KT.ffiffi&Et+Sf*)" +6#Etffi* A.ffit* s mffi* c qtFHEFfJ*" +tfiEH +Efi*Titfir'*Efr " +ffi# H AEffiffi)E{,1&**E*F N " +6EEFS& , }6AIJLHF.t'iEdffi H. +68+FE+ , +ffi .fi If; .tllRa. " HU GB/T 20878-2007 T+frffifH ffif f*ffi ffiE e.k + Fl,l> r S E +ffi WflF-T 6 ffi ffi tnfd ffi ffi W + eX 4L+ ffih ( n*. 1 - t 5 )' + u h fl'WYt & fr4rvfr td T *F h ffi. + ffJ vr w4 w. 8 fl. +6 IE ffi € &it lD)w +x{ ffi t . 6 tr fi fi ffif ft fi Ff, € i6 H +6 }E S " + ffi lE fl, € #r W + eX k + fr,tl ifrH T ff'J, E if 6 ffi ffifi ffif R ffi @,ffi ffi ffi. ffi+,fr ff ) F ff t6 lE F-'f *ffi" 2 ^LE&Ey. Tr{^iFfiEXj6,HT+f6/8" 2 . 1 Tffifi stainless steel U 6 +*,ffi fA,H n + g1 ++1t, -H. # A E A,)- tr to . s %, ffi A E E zt 6 ffi tr t. z % #t ffi . 2 . 1 . 1 4RftgTffiffi austenitic grade stainless steel 4 {4 r) FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,L' nf Fa r6t+*t4 H! 4 K,f+ f,4, Q fE ) } +, fM,'l+, + 4 jE i S f I & + 14 4t ( +Fl fE + *-re.*<:&'l+>ffi6ffiffi " 2 . 1 . 2 E FfF-**6 (Uffi ) fl7fiffiffi austenitic-ferritic(duplex) grade stainless steel €'f+# A 4 R'f+ fi *H'{+ W tH n4( 4 + & rt- fH ffi A E - flt a7 rc % ), A M'W' r'l iE d A fi r & HrEkffi^.ffiffi. 2 . 1 . 3 **#44$fl ferritic grade stainless steel 44{+tli{+,1. nfr F^W#ffi#J&RWfr.g,G fH) i+ ,HM:W, -flt6€EiEil*ALg@ 4t,,lEWfrrI. EIffiH#:ffiEET.LffiAffiffi" 2 . 1 . 4 -q KfF44ffiffi martensitic grade stainless steel ' e Wh 4 E Wmg,, H M:l+' 1E ff fl 4L g EI ffiWH )r +'l+frVffJ T ffi ffi . 2 . 1 . 5 RfrG{Lfl4ffiffi precipitation hardening grade stainless steel 44 {+ n 4 F {+ 4 g K .f4 fr,g,, * frz|F,d n E @ 4L ( x tfi rf it @ tD ftwffiH@ ( G ) 4L F9 6 ffi ffi . 2 . 2 ffi*fi heat-resistingsteel AHffiTRd AfTffJTT,+ffiE,If 4&HHtr ffiffi. 3 ffiftIt +fi ,)eFF€fri-fift EEll 3. 1 & Eff i .AEXT4+T o.o+%N,ff i#Wtr,4i tJ 'W;8ff i .#€T,tf o. o:o%Fi , f f i#w 3 t izJ' f f . 3.2 f f i hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhcr-Ni-M"ffE9l,xt&X4.ffJf4f,W+hnIf#f z. oo%4 t. oo% (Ft€) ,ETEf %,KRMffi&4+ffi H(LYfr,TII ffixT 3%, fi,4€- ffia€-- ffi+EF.fiL?fr#-a^; H4LYfr,h; cB/"r 20878-2007 €- H ffi 44r-A #J n +nHJ ffi&ffi eH A tr FH ffi n+ g " 3.3 ffi hlF H Tfi ^tr E d x4liz. rffi #H &'fK F! dR FRErl.' 4 R'ffi 4 ffi ffi#ffia a^ tT o' 0 45 %' N {e4afiff, +ffiAe.n,tT 0. o+o%,ETilffin+nflJffiffi+ " 3.4 ff i h1F* Tf+t^fi^Ftrffifl,E$'{Fg!dhpc tr;rf,&*4ffiffi€ffiFffiAE^l( 7 o' ozo% '€.^�€, ffiNw4Jffiffi+" 3 . 5 G ffi*ffiffitrffift##aE7F,tt E6^tT t. oo%, x{T lEl F-f 4F K*fiH+FffiE!ffi€ffi#E trE#Hdhrp€fi E'f4r ft &f4*ffi8. 3 .6 f f i N'}-hTRfiEffi 6,4, '7 Z%. 3 . 7 € hrFH T++ffi#. f + 3 % " 3.8 ff i hIFHT++'A aE-J$ t& i lE -L &^4*tl. '+E 3.e f , hffiffi#^ 3. 10 fE h++4#^ 3. l1 ffifrtE h+a.ffiffiH E: Cb(columbi 4 Tffiffififfi*fl 4.1 ^trfifnffi'J*fl ftiE|tu+ " 4.q R{+4fnu[ t 1 tgsF w4.6ffi tz *JWr.'{+-fiH{f4 t3 h*a,f+46trfrflmJ #.4 hq�RW46ffifififfif* ttttt 5 t}}Jffi E ig.|iz4:f. ffifi fr ffiJ* fi ffiZ Wtffittr 4.2 +&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&nlFfE W4t+f,tlEHTWJE€tAf€,H'fr|+€f TcRfttteFR€B!-ff +I{" H 3 F ttJ xa ffi ft.€ + n H fi h ffr - ffiWF[, 4 fd ]E + ffi'p. rt lt'+ fr.h EWWB 4 G n[ ffi E F!' 4. 3 + tn yF tr #J tL+ ffi,tt EwP F, +swx... ffi zffi , T tF h xil 4t f4 P F, lt+fr ,| ffi 4 * " 4. 4 H Tffi t* F! fi ^ tr tr,lA - ffi + E &P F,+sW+ fr ,14 * A €' zJ' F! A 4t' " tri+ EF ffi tn IE 4 A E . t[, iI + i6 y ffiw +y,+it r]fi F, &xt *,^ 7r#,H E * ffi A etF ++r^pp tl fl E . lB + EJ 6E' ffi - ffi' E && ffi ffiffi mlft fi F F,hStP7-H l+'+ fr'he*Tffi- " GB/T 20878-2007 # "1-\ @ Il< \ b7 {t' !\l ITR r h hv f\ I z )( @ D N )( 6 E N )( n b N i o @ m ) D @ )( o N c O ) N ) F.- N I I I I I l o @ i i o . c o l o r d l o N i ) i o . N O N N ) r d l o ) @ d l o @ i i o ) r i i o r H ) r d z l o l o l o N ) l o 6 n N ) N )( O i o i o @ ) a o - - 6 ) ^ € a n N o o m N n @ n n n D n l o . N 6 l o o - ' € ) a O - " ' o N ) ^ a o o c i € ) i o . N d ) ^ 6 N N N N a )( o i o o r d t ^ @ N )( b @ N )( b b N i - )( O N M N )( @ N N ) O N n 4r' G Itr z z r z @ z z d N z sl z n O N z z o N ! z N a N t ) o z a N z o N ! N N z F-- z L N z a o z 4n €f R z z r d ! N z = z r z @ z o L r ) N z z, N z N z @ h N z z N z N 6 N L N z N a z d N N r z r N r z r N N z r z r N z d r d o z r ) N U) z d N d'# s 1 4 ) s @ a a r n a N a b n a n a @ r n o a a a o a @ m a N N a N o N a th dF N @ N d N G 6{'l + r( H uln €+ E *itr trl Ht E st< - l Htl € s< E( {tK GB/T 20878-2007 s *-\ @ ,4- bz JIL 4 t +l ffi rEl r f \ f( n A\ o a I ) O ' s ;v o 0 I z z I )( € N d )( @ c ) i )( o n m i - c ) i )( o )( O o I I , 1 I .J \ I \ l o N d l o N d t #,4F= * )€ d l od r d r 3 bK * i oRd l or i i o@ d l o. t -D i z ) a O - v o ) o =7 'st6 o d 1 l* ;lff. *\r A \\ d * ) I O f , l o ) r i a E A\ trrt 7 \ \ N la @ llstl tE l @ @ W H b fI 3 N iltI @ : \ A N N N @ N L N N a TL .j 7 H\: r.ojIt 2 co O { I qt' sf E z r ) ) a 2 bX T l z I p / E E 2/ / z Nz€! Nz zT5 7 \ z L.) \ z 2 .y 4t' m z N oU) z N z o ! \ z N N \ z i r =- \r\ z o N o z d t- ..J m z / 7 z z a z z z o z d z ! N N N z N z z d N z € d {+' # 4t' 1 4 ) s r a r N a a a a a o € m a a r a n q a a a {& qD @ r oo N N NGI N N N N rN N {H(${T {tH GB/T 20878-2007 #)-\ @ lls \ ba IrL \r T|e tE,r n w I @ A\ F )( z z ) 6 0 ) o d )( N @ N I ) I ) ) i o l o N l o N l o N l o i o )( o N i o N N N i o N N l o N N N ) - f N N ) < r N N l o + N )( o i o i o )( O @ d i o o d ) @ d z ) ) ) l o N i l o r N )( o ) i N N ) r d ) O i i o )( o o d )( O ) a m n m o o o n @ E o @ n @ n N l o N N N N a )( n b N r @ d 6 (J ) N N ) 4l' Etr z N z a ) N z ! z z N r ) z N N z @ (J N N z N a ) z r N z r F o z a ) 4t' R z N z N z N L(J N z o N z r ) z N N z N N z N z N z @ N N z z N n d N N z r N z r N N N 2 r N F z r z N z r ti' # 4l' 1 4 ) s a a a U) U) oa N d a a o n a n N a o a o Q o a o a r a lh 4r' o m N o r s : {K =--.--- GB/T 20878-2007 \a # -4-\ W ils -+-\ E {f' AJ il( i n t{ )( ^ V N F )( ^ v @ a) z )( @ )( @ l o o c \ I I ) )( N O N ) ) o h . N ) n I l o N )( O )( E O N N . N i - O F - . N ) h N N ) )( o )( o i o n n N N ) l o ) i o O H ) @ d l o r d ) F - i )( o r d ) O N )( O € N i o € N i o N i i o l o F.- N i o co ct i o N i ) b'- N z ) ) o d ) ) N i )( O ) N ) . n ) . r o i o m # d ) . r D i i o . N o i l o . e ) ^ o o o ' d ) ^ o i a n n n n N n N n N N N N N N N N N N N N N N a r N i o 4t' s _EI z N AI z r O z N z r (-) N N z N z r ) N z a z d ! z r ) a d z o r ) z ! z d (J F z d (J F z d + sl- R z N N z r (J z N N z N N N O N N z ! N r ) N 2 N N z @ z € ! r ) N N N N z N ! r ) z z () N N d z N N b z ! z z N N z o i z ! N F z r l F z o d ! F- {t' f i4D 1 + ) s b d a a q a a N r a r a N a N U) o r a N r a F a € N q N oU) tF 4r' N N b @@ s : {tH ,4 cB/T 20878-2007 \o K "4-\ @ dr{ .1-\ ba lil- Al 1ITR rlJ ++ I Q nv r 6i si F IO o s; si F I z ) z I . o j z ,$d ,K @ €r E N g >r\ \ R {!d dD s .ht l< ffi R {T .{K +v m ;\ .fid @ d>a lEt E b1i# E\ iiF s -+i\j>? l\ 6 +{K ffi r lJI n{u {n o . e \ 4 r - t \ F ;-1 9 t l K S r l } E E E rr. - 4 P !t>? r* lEt r + t * F f i E S € z i - @ n I ) r ) ) I l o i o . € N ) i o o i ) ! + N N ) r d d l o . c.- l o M N l o N d ) r d ) N N i o . N O N ) . r r + N N z ) ^ o d i o # N N ) r ) . r ) @ i ) a 6 ) ) )( o a o N O o @ N i o N r i o . r D N N U) )( o n ) t ^ ) 4 . N ) N ) d N n m i o N N + EI N d z z d L O N z z Z z = z U a z r ) N a z N a N z N 4n sl R F z r ) z L) N z N n N F z € N z r ) N z z n r z N z z @ z d z d f ) r q N a z N N a N z N ti' # q F 1 4 ) s o N a @ a N r N a a a N r a r r q a N co a o a th 4r' Nn ob s : {tK Il s e I r l j I r n t : l " r @ ) ) F < N Y c o v ( n F ) q o F n -i ^. ^ z > < o ! + 9 > x - : m / \ \ . T 7 ( ) F )\ N6 d- od )€ N- oo )\ o< r No )\ on - - )o Nd )\ oo . ' ,ci )a No )i d l oNt_ l o l o l o )\ O o ' r .j b l o t . l > I i o N I ) c ) n N l o o n i o l o N i o n N l o N l o i o :: l__ ^ l s l . a I f )\ l - f f i i l 1 l o r d i o c o i i o . N c ) N N l o i N N t ^ N N N ) n d N N l o { N N l o 3 N N )( o . r < r N N ) N )\ o o v <{' N N rtr{ F- - l v l D l z R l ) . N i o l o l l o o € l o E c o . l @ . n I . @ l o 6 )( O . n l o b l o n . r @ l o i o ) t $ -l : 1 , N N 8 l e l 8o l ; l o n l r o l o o l o l ^ m l o o l o n n ) l( o l o - . N l o I N N n N N r N O I * l a )\ o o v ) ' - N d. d d )\ 6 o d ' O d ) 6 d - o 3 l .--l 4t' f g F a z N a n z () F F z N l n l @ l R l q 1l e t h v l n l . ' t \t { d l a ---1 =' qD R F a z z N .n n z L N N F. E z N I N z :! z N N L N N z z N N N z z N N z N z N * N N z F r z E N N z N z n N z r z n N N N z F r 2 N ! N @ ,ba tEt E bl E s 16 s .+-\ H l\ {e\ tt' # q F 1 4 ) t€ a n N a N N a @ N N N a n N N a N a @ N N a N N a n n N a r a r N a + t r h s N r r r mr r N r r GB/T 20878-2007 G I H I$l +(l H I uln I# F sl< FI €{H ssH< E( C! {lK GB/T 20878-2007 # .5 @ ,+-\ € {t' A] s( 1LJI n fl I N I F z " ' . ^ f ; d( J ( ^ - v n v @ i . o A \ o z ) f * s ; t ^ . 4 \ i-. Z o t.!\ -T- I ) o ' o z ; 4>t tEt F z I () I I )( O d i o O T o i ) ^ o r @ ) o r l o i o i o i o @ d ) @ i )( O z ) a d o @ A\ @ n N a @ r N dt' EI F N r r ) r d r ) N d r ) dt' ff R F F F z N z N ! N N N ! N ! r ) r ! F r ) N N tf, # q D 1 4 ) t4* a € a a o N i U) N U) N a H a r a r r a a th 4r' r or r .t 6{'l' + r( H EF' s+ E sitr HE F s ti BI € l|K # (Y) {ts '...5 cB/T 20878-2007 H -+,\ @ I|< .4-\ E {f' AT s( r lilrr\ +( i n z d{ tEt o t \ { u t - o : $ e z f l . i i f F O co @ m i + d A \ t - Z a 9 ' Z i n o I ' R z a U o ' - r U I R nlb {d K @ R F ( Hl m ( ht @ 1>{ tEt sfl bl s i+ s .4- ba l\ 6 +q {s r n {H{u €' € 1\ a\{K ! t'- ,F l r Fh $]E sq \o n H-{lf' A* lEf H- R t>t @ {tr €t r z frl ; N , 1 ! rP {lf' d>? lEt H- ..: z \o F i i js{ o E i l - # { F b t>7 lE lq s H - l a ' < l d { e E * n ffi :l' b 4 s} E \ z N n d @ .-( -$. )( b N N N )( @ N N N .( { o -n @r . 6 i \ h ) i o . o o o i *7, )% ( oo n\;I )-r-. bx.N z /*' t/ a c; tl \ \ a ,El 7 ' 8 \"; N \ nu ftl H , 7 4 EI II nt lqF U T a d $ h"il iN \ 3 tFt dd / / { ilb s g ri \ \ \- z N v / 4 N5 4F m N z r O F € k a t 6 \ (J z h SI N L4 z N d ! o d z N r N L N L a l 'jlt' # s l 4 ) {R r a o r r a N a N a N t - a N a r N a (t) & q F € oo o d o o o s (Y) {tK cBE/T 20878-2007 # -+,\ @ .+-\ b? {t' A: fi( rElrr\ +* fl z I I I ) I I ! i o ) ) ) i o ) N d ) N i l ) N H ) N i ) N d )( o . 6 @ d z l o i o )( O . N a @ A\ n A\ )( @ )( N € i ) N d )( O a D n @ @ n )( E @ N )( @ N )( n )( @ ) N )( N qn Etr L O d ! O r ) d a ) N ! z L N z r ! qp R N N ! N @ z N N o O N z r ) n N N z t - O 0i # q F 1 4 ) t€ m a a a a r @ a N q N a r N a N a r a a lh 4f' o r o @ G € {'} + r( H EF' sf E TE E !t+ ECs st+ - l Hgl s HI m tl. {tH 1 1 5 ,+- @ dd \|\ ba {t' A: $( rr\ K I I z I ,-/ a-]-i- \ r e 1&,E r l o\:* w i o i o ) . r n i #x i o-- l ox = i Jx" $n)@\ = - i oN i z ) . s l ,#3l E 3\ \ a m l : l / n t o x 3 \ v,H I ' n ;I3 l o . l : - l - I I Ut l o< ) nm q : \ ts\ o\ oL.iE ' ^/ 3 l € )( N N N HA)( 4N\ o ,ry 7i, " I # d )( nN s G E \ r d h\s r h /.y / / t t d 4t' R N z r ) r r N d @ € r r k a.- N d N N L d N ti' # 4r' 1 4 2 IR N a r a € a a r a a @ a a r F 0 @ @ a & s r o N m r GB/T 20878-2007 s{ s{s GB/T 20878-2007 K ,4-\ @ l|q )-\ r'>Z {t' A: fi( r h t{ ) r N O O ) N $ ) d m ) @ @ N O ) ( ^ o . ; . z d o l i O @ f i F > n o N < i c , l i n o r N F > O o N c ) i l o c o n d F > o m . " . . ; ) ) l A ( ;F X - > > 2 z ) n d I ) O N i o ) o r ) )( o O N i o l o O T )( b E N r )( O n @ ) . d )( o o i i o r i d i o l o d d ) ) c ) i l o ) ^ ) @ ) . N z I ) )( o )( o i o )( o . N a N @ m n o @ @ n ) l o i o ) a ) d n r ) )( E l " o i o D T ) ) N N ) )( b N ) )( N 4t' E N O N z z ! F r ) F z N r l N SJ z h O z F z d qt' F R r N d N N N z z F ! n Ez N (J N N N F z d .bz F N z N itf, # qt'1 r TR (t) a a a N a N a r a N N r a r a r a & dt' r d o d N N N 1 3 {il ST s{s GB/T 20878-2007 # /1_\ M 6 ,4-\ ba *L +l fi( rE,I n t( I n N m o 9 ?) . - ( 3 o R N - - - . ; { c ; . z O € N N . 3 N b o O ) o o ) - ( 9 o o c q . A F I lrd{< @ o K{+ E\ R {!d T5- qF rlfi .$d{< ffi R 4 lEt ftfl. blE E\ :{5 s \ ,c>t l\ 6 ry H r E {! l r n>ajEt' aa d z )( o . $ o ) n . N )( o ) r l o . N l o . N i o . n m d i o @ r ) a a 6 6 l o O N z l o l o l o N )( b a N d o N ) r r i o U) l o N l o o @ )( o . N i - N N r . N )( m @ d ) N N ) ) n n l o ) )( n h o o t - 4t' f trI z z z N NF z l ) N a N a z N a N ao qn f m Z N z dt z z E z € N F z N(r) o N a () N a F z N a N llh # 4 D I P ,kl @ N N Q r a N N a a a d a & q n rN N N d s s {H 14 cB/r 20878-2007 # -l\ M +,\ bz $L \l ffi r n u .t\ ) ? n - , o ; i b d Y ) l 6 r o e ? z I E z n c; I z I r i N i N { ) d . ; L) - 9 o o o n g T - , ? o ' ; : 3 - O ; - d 4 ; 5 . o ' i : ; > ffi R F {K t|\ ;q. {d @ a>ztEt' Erl bl +E s rF s .+- ..|\ b7 l\ l--a + t {E{ r l r z )( m r d I l o 6 l o N l o I ) N 6 l o N i o N N )( O N )( o ) N d ) . N )( o ) o 6 . N n d l o @ i ) ) i o . r )( o . r @ d ) o d z ) @ N ) o n r i o )( O )( b o r . N )( n O N . r ) )( o l o . r i o . r . + N (t) @ ) . @ )( b N a r N o o ) r d oo qF sl- ttr z r ) z r r z r r ) N : z ! ro S z -N < t s > N - n 9l z _ D M E > 5 < qF m N z L F z z N z z ! n z (-) z r r Z r ! r N c.- z n N z N d ! r ) r z n z r ! F N z r N F n N z O > 5 < tt' # 4t' 1 4 ) {R € a a n b a r a r N b a r n n a N il a n r a r r @U) E N a & qt' d N N c €{'t + ffi H 4P sf ECs Fi :lF F lt+ Fst+ - lRrt + H f.g rs ro {lK 15 +l fi5 {+ H< 4 rR E d € "R $ ; : . ro r NN o N d o AT E=Qu - H E 3 + J . o o F- N r N F- N \- r N t - NN Nt - N K C r & < A : s N - 5) I 5J r r r oo o N oo N N i r € N n s) Ip N o N r r N N N - - M f r - . n1l' F N \ F p a N N a N n N N N @ N n N N N N n AT @ N p 00 - - X X ! , F , - = Nt f f i - in ) -t -^ u - n n @ n @ n n n @ f l e o ,Eib - i o N I i co N i o o i r d N i @ o N i o n d n i : - H - .e { ! x € F g , ( N N r oN r oN n N N r r o N r N N N o N 4r trI z a z r z z z N r z r z € N z d a o z h r ) z o a z i r ) z d ! i z o N r ) z ! Z o z E z z 4r' & z z N N z @ z € N z o N r z N N r z N ! N N z N z F.- O N N z N 6 z € N U) z z ! N o a z (J N z z N N z o N N o z L C) z z ! z z r ) N tf, # 4 F ' t P {€ a 6 q N a d a m mq a N AT q N a N U) r i a r a U) a a o a o a a o E a & 4t' 6l r €d N N N cB/T 20878-2007 # s # # s # # Hg s H E S n F .8 f ; H ' F F S # : + S l E = 6 8 F t E f f i .F r+ S G r i f f i !a dtr {H GB/T 20878-2007 # € |1< * ) * " - ? r E v l ! { f f < - o < 5 z Nsr +! -y o o 6 N N N N N o o ' \ < .&il *, r' = t r x f , r . r r N N r r r r n r N @ r r r N r K C |lR \ : B T s : s K " p 4 i p r r N o r n r N n p Ip r r r o n d D n b @ d r 6 d @ @ : Mt r - . nl'l' tr i , v f f \"^ ts p n n r @ D n @ r d r N @ p o E @ o a ) . v o < N N b 6 n N J D r ) . v i N r - - , : V X( t - . f f i . r ) - - Y 5 ^ U - n n @ n n @ @ n r r n n n {x- g n i d ( @ I @ I N o n o n i r i @ N r i r r o m i r ) - E . ,f , 3 X& g , ( or m m N r r r N r o r r r r qF 6 Etr z z Z N z N N z O z f ) z N z @ z @ N i z F- N z r F z ! z N 2 N O A m z N r ) r ) N z N O z O I z 4t' f R z r ) z z N r ) z N z N a z o N k z N (J z ! r ) z O z n z N N N z N N z @ d z @ N z r d @ z r N F N d z r z N N z r d z N N Z r N z r ) N z z z, z E o z o itf' # 4 r1 r tq< r o a Q € a n a N o a o) a o a N a a D o Q @ N a a a @ a a @ o Q a o a N r a N a & 4t' @N N @m m r o @ o t 7 {H( {K cB/T 20878-2007 4 +r € rR {s sg3sN o Nr € N€d N N6t N - 5 )€ oN ffl- *c c-r S E = + r . - - N N r N F- € \ r € N # c r K < A : s - 5) i 5J d / K s / ,/, 7 - s n p :rS \ s \ T \ -il P N ; F- 5) N X tl ; .{+ s( 5J i i 5) N &t.iE <;Z ,.2 E. ,z N 5. \ \-t \3 n pd x' N N N - - V s . rrt- tr * : \ F U s) n N /sN6iN N o p6 5 3 \ ;\ @N7 \ 5) / _q, q UlE L p i lI v/ . / v t @ H n \ - I - - Q ? & . 5g , U - f f i . r4 ) - = x t J - F @T n n i r V L.E q ll -/ N N I t l ' \ tr - . * ( ! q f i ] d x r \ aqbr\ I € t/ /*N A r r N€ Nr o:tN 76N rr I 4t' ttr z z F z x = z $ i O N b 5 K z \l a N a i: a d 6 E oo a? / F :€ z * r ) / / / N L r ) _A oo ! 4t' s R z h r ) N N z @ z N N F z NF 2 D N F z € N z N z z a z N a z N (J F a z H z N U) z B N N F z N L N z z N N r ) N N z z N At N z N 2 N N N z t z R d3 > z N z h N z t - z N a ) N 0t-, H f f 1 4 ) {R F- o N N (t) 6 N a N a N N N a a r N m a d a a N a n o NU) N N a N N N a N a E N NU) n N N a U) N n N a eh 4' n @ r N r € r Nr N N r r tr : < {H 18 GB/T 20878-2007 iB .t+ se s {€ Jf+ H< di' te * . ) Q * r 4 u r E p 5 # ; R s-t tl '; N N N N N N N N N N d N N N N ' \ < ,h* *, . ' - ' . b v a t r : r r n r N r # C r K < slt ? @ d F v$t p ip N d N N r p i 5) m r N ' - M S r n1-' tr f f i : \" F p @ N o 6 N p N N N o N N . v O N N - Q X t t . 5 f f i . !4 ) * . ! x @ @ r ) e d i I r d 6 i o n ) \ t r . . + { ! x f f i i ; ( r r r r @ N N r r N r r r r r r N r r r N r N b r N r N N r N N r r r r dt' Etr r l F N n r r ! O r (J N r (J (J N o (J 4tt R d F F N N N ! N N ! r c.- F # ! r l N N r ! a ) z N F (J i F z N o ! o r N O N a O r ) z ilf, # dt' 1 4 ) te a a a a a N a r r i d a a r a r r d a N a N N o (t) o N a @ a a a o @ a tt 4r' r r @ r N o r o 1 9 {il $T {H cB/T 20878-2007 .l€s H E d € "{ E , { K < o6 E = * N N N N N o N N N N N st N n N N N N \ < fih -e e.r Frl = -^ e t r x r n b N b r n N r r - - \ \ r # c} K < :t4 ? B : & v $\ s) I 5
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