NB/T 47021  法兰 C-RF 400-1.0/1

47021 C-RF400-1.0/1

WN450-150RFm5/14

1 RF 1400-0.25 δs=12

WN 40(B)-16 RF S=Rc

NB/T47021 C-RF1200-0.6

SO 50(B)-16 RF

SO 25(B)-16 RF

PL 50-16 RF D=155 B=59 b=3

PL 50-16 RF

WN 80(B)-16 RF S=RcRF@47=3.56��rf s=5 s65Fr(00-0.25 d65J SCH1605 S=2 RF S=3.5.5