NB/T 47022  法兰 C-RF 800-0.25/20Оҙ1=8

2 CRF 800-0.2520Оҙ1=8

WN 300(B)-16 RF S=10-150Ш

WN150(A)-100RFS=8

WN 80(B)-63 RF S=3fRFf s=

B WN 34"-300 RF B=Sch10S

PL200(B)-16FF

pl50B)-16 RF8-1-h8040O100fhRFor0086aRF00RJ@WN- H2

WN200-25RF S=12.5

pl250b-6rf f.550-1.02G2061501

BL450-150RFH