HG/T 20592  法兰 PL 50-6 RF b1=60.8

pl50(a)-6 rf b1=60.8

PJ/SE 65(B)-40 RF S=3f3

20592 WN100-300 RF6CH400-1.0�

wn100(b)-63 fm s/6 d=1085-200 b=1=110/▒п

WN500(B)-16RF160-10rf=F S=

3 rf 1200-1.6 s=161F b=4-

BL400(B)-10RF Ach.6/40sch80(B)4 l=22)-1 R

wn50-150rj a=60.3 b=49F B=750/

hg