HG/T 20592  法兰盖 BL 250(B)-16 RF0-1.6.7 f1=1.

BL250(B)-16 RF0-1.6.7 f1=1.

wn150-150 rf b=146.30

wn80(a)-160 m

WN25-150 RF Sch40

LWN50-300 RF H=168 B=52

B WN28"-150 RF S=9.52

wn50-1500rjsc005/5 N10RF†&=BcRF=0mj=2b=3 S=3.7F rfwn

3 FM 600-1.6

47023fm800-6.440 M S=10

WN80-25RF SCH1606 r=1