HG/T 20592  法兰 SO 80-6 RF50 RF Sch-3F Sch4-3 TS0/-0.2u.5 b=4/h

so80-6rf50 RF Sch-3F Sch4-3 TS0/-0.2u.5 b=4/h

wn80b)-600 rf

so125-150 rf b=142 d=2bqid

WN 200(B)-25 FM S=80 RF16 RFrfS=80 RF16 RFrf

wn250-150 RF Sch40 S=9.53

WN 80-1500 RF S=8

1 RF 400-1.0 δs=5

BL100(B)-40FM00 R0rffR0sch100.25/

wn150-150 t600s D=210