GB/T 29465  法兰 RF 800-1.0/20δ0=10

5 RF 800-1.020δ0=10

WN300B-40FM S=10/F´ RF9800HGM S

DN700-Ⅰ-32 90EL50rf F-2.

1 M 300-1.6 δ6ervFSRc8FFS d)-/

47023 m 800-1.6 δ0

B WN 700-150 RF S=15005

WN20-300RFBB=61f3)-

LWN25-300 RJMRFRFc5=700u02

PL200(B)- 16RFhh0rfpampwd=&

bl300-16r