GB/T 12459  等径三通 DN 500-Sch40STSF-FF400-1.6.6 FF6/

DN 500-Sch40S TSF-FF400-1.6.6 FF6/

47023 FM700-0.6H=1

WN20-1500 RJ

47021 crf800-1/s=u00 RFh80S0 RFF

WN 350-1500 G Sch

BI600-F(S)-F6/70-155 δ0=12./r6

PL200(B)-25 RF 0-/

法兰bl200(B)-16RF.5S=4L100-1.0/r

20592 wn125-40rf/

1 M 900-1.0 δs=87mRF00FF