HG/T 20592  法兰 PL 50(B)-10 RF0B)G/T2F&=&=80ebfc4e Sch40S H=80 B=2034

pl50b)-10 rf0B)G/T2F&=&=80ebfc4e Sch40S H=80 B=2034

so400-10g-650-1-40FRF¦â0 rf5SB)Fs=RF S=5

SO150(B)-16RF0 rf5SB)Fs=RF S=5 M S=8 20b)-10

WN80-1500RFSCH100

PL25(B)-16 RF s-4 s=1246RF8 MR=rH801200sch10s½ B=21–

SO250B-40fM66mP/0RF-2 rf-0

wn20