HG/T 20592  法兰 IF 65-40 RF-63-1� RF5S=11.5 b=4 S=1F Sch80rj h4h4

IF65-40 RF-63-1� RF5S=11.5 b=4 S=1F Sch80rj h4h4

JWN 40×80(B)-25 M S=5.5016RFf600a6=4=26 b=4

PL100(B)-16 RF b=4 D=230 K=.5 S=121RF 1263M

PL300(B)-6 FF=268 f1=3 D=330 C=1835Ff100h

wn15-25 rf2rF RF5S=11.5 b=4 S=1F Sch80rj h

wn100-25 rf f1=2=306 A=32