HG/T 20592  法兰 PL 500(B)-25 RF510RFcF16300R-

pl500b)-25rf510RFcF16300R-

PL25(B)-16 RF =266 b=Sfrr1.0/

wn32-40rf s=4Fh305Frv6 RF L=20 C=28592-2

BL200-150 RFF1Sc f1=1.6 m2502880

1FM300-1.RF ,HG4012=78-rf s=415=800-1

WN250-150 RF7021 C-RF1000

wn65-40rf s=9rf4/6f0-

PL 50(B)-16M4SM80s -

so100(b)-16