法兰 WN 200(B)-16 RF f1=3 S2/41

WN 200(B)-16 RF f1=3 S2/41

HG/T20592-2009 SO50B-16 RF

47065.2 A56 RFS=600RJ09 W0-300 RF SCH40u00c6/u0092 s=5650-1./B)-10RF RF

wn20(b)-16 rf s=2.5

3 RF 800-1.6wb)-16rf,s=160RFfSch140 S=650rf sch80s/36-97 s.2.5 RF S-0c5RF773 HG/T 20623(

PL400B-10