GB/T 12459  异径三通 DN 450×450×50-Sch40TR

DN 50×50×450-Sch40 TR

PL40-16RF 136L404/

PL200(B)-10 RF25-16 RF0SF600-0--2.5

3 B6

lwn50-600rf b=F80S S

47023 FM550-2.5/pl530-1

BL150-16 RF4070a S6 n=60/0 FF9

SO 10"-150 RF

bl350-10rf hg=

PL25-10RFK=d00-2.5��â 5k=1Fδn=8FM-2-40 RFFF51.6F2.S-16