HG/T 20592  法兰 WN 300-40 RF Sch40F0-25f0Fw.hgcb2FMF425RF-100e2/data/public

2 G 2000-1.020δ1=12H=

1 C -FF400-1.2=114.3 s=4-105 RF0RFFæ—&a

pl50(b)-10 rf 2/8

WN500-300RF25 rf /�K 15A��6 RFm0S 181 hg/fo/um0RG/ G/B))-300RF S=8

1 CFM 600-0.2520δs=14

2 M 1600-2.520δ1=0FTBL2

BL25(B)-63m/=180 S=3.550 RF50 RF S6 unde