NB/T 47021  法兰 C-RF 1800-0.25 �00 RF Sch40RF0=/400 bbБ┬≥Б∙≈п▒Б√═Бh580mlFF

1 CRF 1800-0.25 �00 RF Sch40RF0=/400 bbБ┬≥Б∙≈п▒Б√═Бh580mlFF

SO15A-16FM/2o250(b)-6

wn50-40 m sch80 sc

WN 150-300 RF Sch140 R50-1

WN40B-40FM D=10RFrf sch10 h1=10)-63RF

WN500-300RFNB/T47026 RF b=5000-0.6F/

PL100(B)-16RF/9SO20.25/ F