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1
中华人民共和国国家标准 GB/T22130-2008 钢制旋塞阀=Steel plug valves
osi
pn20
dn300
pn420
pn110
pn140
pn150
pn25
pn260
pn68
arr
dn65
dn80
gow
pn10
pn16
pn40
pn50
prr
dn100
dn15
dn150
dn50
pn160
pn250
whe
ark
baf
ffa
fma
frr
pn100
pn63
rea
rhe
rrr
s00z
0e1l22
brk
brr
butt
cpt
cse
dn200
dn5o
dn600
erk
fea
ffe
hers
Language:
chinese
File:
PDF, 7.00 MB
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