HG/T 20623  法兰 WN 1350(B)-150 RF/RF-201000@W8s=7.16fmh4h40Sc

WN 1350B-150 RF/RF-201000@W8s=7.16fmh4h40Sc

pl 80-6 rf00 RF,S)

WN 200(B)-63 RF

47023 FM400-4.0 /clas

BI 500 h=300 B=135

WN 500-600 RF Sch80S

wn 150(b)-63 RFrfAAR0-=

WN200(B)-40 RF S=9.5

WN 40(B)-16 RF S=3

PL125-16RF b=3.5pamph44 RF5Famp;ampe�