NB/T 47022  法兰 M 2400-4.0/20δ1=12

2 M 2400-4.020δ1=12

WN 40(B)-16 RF S=3.8 RF Sch10SN300-2вҖң

WN 65(B)-40 T-

wn250-900mrf sc F

PL800(B)-16 M40009 SO200108F50r/J S S4.050�3

BWN 36"-150 RF S=10

WN250(B)-300 RF Scwn3147023

BWN 750-150 RF140-25=16.0δ=70 h=165 R

WN450-1500 RJ