HG/T 20592  法兰 WN 400-10 Ms=760s00-

wn400-10 ms=760s00-

B WN850-300 RF s.6/61

so500-16rfhg

PL 80-16 FM=4 A=168-16rF5R=4 NB S0-4.00

WN80(B)-100 ff20/RF-160 RFRFF B=98M S T0f s=.0/

WN 100(B)-100 RJ Sch40S3F5c97 RF S=3.3824M9SRF@

法兰 WN150-100RFf60SF Sch40F=3/NS=)-e00g200=a

WN 50-25 RF