HG/T 20592  法兰盖 BL 150-25 RF-4.

BL150-25 RF-4.

wn500-300rfsch100=7.sch1n2406RF1

WN 500-600 RF Sch800e1s=16

BL80(B)-16 RF d=136/BB=7

WN150-300RJ S= RFRFSf-

WN 80(B)-40 m S=4

wn20-150rf sch80s150S=80-2.

so50b-25rf0Rrf 500 -2.

bi 500/8016 RB=33/b1=170120=b)R=6f1=00=16

PL 95-6 RF= K=