HG/T 20592  法兰 PL 50(B)-10 RF Sch40 S

pl50(B)-10 rf Sch40 S

SO100B)-25M/','/', 470rfn600-9N1009as=65mpamp

wn 40(b)-16rf sã

BI 700 h=1000-0я

B WN 900-150 RF16RFm)=26 cStml0-60a=-1-150 RFHS/mpam-3

SO 300-150 RF SCH8025rI/AA´=Sc sch40sch80sr0¬â¢

pl100b)-25rf00F-60-1.f

DN80-PN40