HG/T 20592  法兰 WN 25(B)-25 FMF H=/10 RFJ6m

WN25B-25FMF H=/10 RFJ6m

wn400(b)- 63rf5-150a)-1RFb)-4@0�F MS(RFF30-F

so 450-150 rf54)-1 S.0F Sch47.5 R

so 50-150 ffpampampS.5aaa/2 RF1=2

EHA1400*8H/6/sch5sF4275RF/

so 250-150 rfSC0-0.6-1.0Fs=

WN100A-16RF S=3.80-1

WN 65-900 RF=840rf1 SO25 pl65

So2