NB/T 47022  法兰 M 2200-4.0/20δ1=10

2 M 2200-4.020δ1=10

PL65(B)-10RF|0F0f R680 B=600 K=0

20592 WN350(A)-16 RF0 R

WN300-600RF2F4F.1-40)-18

BL 250-16 RF40-20/6F36 RF24=146-245

WN 25(B)-16 RF S=3RFSch40

PL32-6RF B=3930 rf190FM5F S=9565CH80FB)-1�

eha1600RFRF.0/L1=250 R1=6/76 R

3FM650-2.