HG/T 20592  法兰 IF 80-25 RF S1=S

IF80-25RF S1=S

PJ/SE 80(B)-25 RF Sch80

WN 80-1500 RF S=16

WN 3"-1500 RF S=10

3C-RF300-1Fs044�03rf9R��/@5@6/0/sj

B BL 1200-150 RF5 RF�ک�1F

WN 150-16 RF��Ҳаё°

wn40-25 rf ,6rf-150 RF

1 RF 500-1.6 δs=6

SO 100(A)-16 RF��NH450SCH6F