HG/T 20592  法兰 WN 500-6 RF00 RF

WN 500-6 RF00 RF

1 RF 2000-0.25 δs=10

WN 600(B)-16 FM S=20

BL 300(B)-16 RF�@FJ- l0s4=RF2@F9@R0

47065.4 B60 RF-R0m s0@b40data5 RJ0S750 RF Schh4=1

WN50B-150 RF0FRFF

BL50-16RF

IF 40-40 RF

WN 8"-300 RF

wn 80-300rf b0RF5j&Fd==07HFFm 1F1RF@4F Sch80