HG/T 20592  法兰盖 BL 250(B)-6 RF�20-150 RFrf

bl250(b)-6RF�20-150 RFrf

PL 100(B)-10 rf b=3 f1=3

BL 450(B)-6 FF6RFte5m00Rf sch80

PL65-16ffR1

WN0-300 RF SMTF900 RJ Sch160��

PL80(A)-25 RF/gkg4r)-10G/160tF

Pl100(A)-10 RF rf10S14 rRF16 RJ=2200e2/810

WN FF 10K H 700A

支腿 A4-581-5

SO 2"