HG/T 20592  法兰 PL 500(B)-16 RF f1=40RFRF5(B)-´=60

pl500b-16rf f1=40RFRF5(B)-´=60

BII10001rfR10mpampam

DN800-PN6 PL FF Ⅱ B=820 D=9

wn50(b)-63ms=4s=3.50(b)-

PL10-16rf b=3СӮВҢВ Р

So 50-150 RFF00 RF Sch40S(0300rf-0-2FM=4.2)-25

SO150A-25FM/MRF=164=18R5

WN450-900 Mf/B)-16S

WN 500-300 RF S=S=20