GB/T 12459  异径三通 DN 200×200×50-Ⅱ-6TR

DN 50×50×200-Ⅱ-6 TR

wn600(b)-16rf50a-600/

法兰wn50-300rfsch60s

WN 150(B)-100 RFh60100(B)-1

WN200 -63FM0cs-250-16F B

WN600-600RFsch40

bl 25-150 rf RF

2 CFM 1000-2.5

WN10B)-25 RF66

bi 1700 rjm k056C0 RF D70fRF0Rh80s-dFM1.hF30@RF1F�.801h5RF@0(5R