NB/T 47021  法兰 C-FF 1700-0.25

47021 c-ff1700-0.25

WN300-300 RF1200M5mSch Sch80b)

3 B235-335 b.6-3=16�8� WN600(B)

so32-150 rf å

BL(S) 40-25 RF

PL150(B)-10RFB1=103L60)F0-1m RF80-

wn65()-16RF65056 rf02

WN 25(B)-16 RF S=3.512=10.0 H99 b=30L40R)-16

20615so25-150rfã¯â¼ë†pn