HG/T 20592  法兰 PL 150(B)-25 FF) d=1�= B=77.5 H

pl150(b)-25ff) d=1�= B=77.5 H

wn200-1500 rf sch40 sMF

WN25-150 FF S=3 Φ38×3

WN 8"-900 RJ Sch80S6

PL 125(B)-10 RF.50-1.6.-25RF网RFF

WN15(B)-16 RF S=516 RF100057f0140rf0f1=3C=t2

BL80(a)-600RF/3fm-

WN 80-150 RF S=3-

PL25-16RFC=16B=35b=380

WN 4