NB/T 47021  法兰 RF 1000-0.25ь╓з╞ь╒б═ьёБ─ ь

47021 RF1000-0.25/ь╓з╞ь╒б═ьёБ─ ь

So40B-63FM20592-4F S

WN 15-300 Gh8ch82.5/

WN 300-300 RF24.

SO 450(B)-16 RF300.6 �

WN50-900 RJSch 4件8(B)-1

WN 150-150 RF S=13.RF δ0=15

PL250B-16FM=34FS=16S=8123h

WN 32-150 RF S/80RF Sch80

so50-3