HG/T 20592  法兰 PL 20-10 FFh40=3 a

PL 20(a)-10 FFh40=3 a

WN50(B)-25 M S=6300f/@a 1000s

SO 20-150 RF50 rf=&qu

bl600-600rf049.1S=

WN 250(B)-40 RF S=8F5

PL1(B)-10RF0 RF/00 RFS=8

WN 10"-150 RF Sch10S S=4.0

WN450-300 TG061rذ آ ذ

WN 80(B)-100 RFSCRS=8F/

HG-T 20592 WN150-25RF==830