NB/T 47021  法兰 T 800-0.6sH165Г�5006 RF Sch150-1

47021 -T 800-0.6/sH165Г�5006 RF Sch150-1

WN 350-16 RF

DN 200-6 TS

SO 80-150 RF

WN 500-150 RF Sch10S�´���FJ Sch80S.5 RFELF Sch40J77

WN105-16 RF0S605

NB/T47023 FM400-2.5F RF0 RF S=ampampampa

SO 20(B)-16 RF�6SC05 LδF3732sampa

47023 fm 100