NB/T 47023  法兰 C-RF 650-1.0/20δ0=10

3 CRF 650-1.020δ0=10

lwn40-300fm l=1

1 RF 450-1.05/48-120 RRF-16

PL500-16RF D=645 B=4

BL 300-2500 RJ=241195.6-1FFMm

HG-T20592PL80-16RFFSch80-150 RF-20

47065.2 A36P0 B=27cmpquotHG

1 M 1400-0.2520δs=

PL350B-25RF25.0/-9-4.060ffrf0fMM306rM0 RF200

pl150