HG/T 20592  法兰 WN 800(B)-100 T S=3.5

WN 800(B)-100 T S=3.5

wn250B-600RF/)-6

WN450-150 RF S=105f S=4-165RF080S08 TSRFF

PL50-16 RF0MF5 RF A0.150mpampnb0-35 &

pl125(B)-16fmRF123400

bl125-40 m12 rf2.470=4RF

WN25(B)-900 RJ1/0.6 ãžâ3=0-1

wn25-40T1.0/1 RF S88

WN 100B-40 RF S=6A)-300RF

2 FF