HG/T 20592  法兰盖 BL 450-25 RF c=80s

bl450-25rf c=80s

3 FM 800-2.50/

2 RF 1000-1.0

WN 250(B)-16 RF

pl65-25 rjbch80 Sch40SRFmH

1 RF 1300-0.25 δs=10

SO 25(B)-16 RF

BI 600�F B=380R=15.-0rf-

WN80-10RJF3fm20425JFR RF

SO 40(B)-16 RF S=40 KC000 RFSch40.5 R=6ww@S5 RJrvl00(H40S80-1.R@b)-�FFS0