NB/T 47022  法兰 C-T 900-2.5/20δ1=8

2 CT 900-2.520δ1=8

DN150-Class150 WN RF S=54=5/13h0(b)10RF10

WN 40-150 RF0-130 d=158=1om=1_

bL200-16RF20N0f1. Cl=20sff s=106=9C3 �S5010RF15F=5/T2

3 CT 600-1.020δ0=8

WN25(A)-40RF-15 R0-

3 CFM 500-0.2520δ0=

BL 50(B)-25 RF =5/1-10RF46-12

bwn300-150