HG/T 20592  法兰 PL 400(B)-16 RF ’¢ S=3 S31603I16RF020

BL 8"-150 RF-40 M RFF S=10 f=2 S=6h=50F S=RRF51FMvo3 216RJ=1

PL400(B)-16 RF ’¢ S=3 S31603I16RF020

nb=t47023 m1200-1.0F S=R0F

SO 80(B)-16 RF D=184

wn50(b)-16 m60

bii40024ndR9BB=50

PL20(B)-10 RF D=140 K=100919

20615 wn150-300 RF74

B WN900-300 R