HG/T 20592  法兰盖 BL 450-6 FF0 R

WN1200(a)-16 RF

BL 450-6 FF0 R

PL50(B)-16 FF Kf0@0F

IF 40-40 FF645�0-

wn50b-25 FMFM

3 C5=3d

pl 80B-6 rf

LJ 10"-150 RF tf=45 Y=64

WN20(B)-600 RF D0RF S-´pampamp

WN 150(A)-100 RF S=6=4 δ=16 S1=16A Sch40SB=49 RF-BS RFf sch1602S=s=35 A=736RF1