NB/T 47022  法兰 C-M 500-0.25/20δ1

2 CM 500-0.2520δ1

PL250(B)-10RF-6.4M14/u00c3/u00a6/6

2 CT 1700-0.620δ1=6

WN150B-25m S=60 RF

PL250(B)-10 RF s=5h816 rF=60-1f6d0S/

47023 RF1000-1.0 δ=100-Sch10S REFM

PL80(B)-10RF(A)H6/

WN150(B)-40M0-2.5 RF.600-

WN 150(B)-40 RFh10 h=35

LJ 16"-15