GB/T 29465  法兰 C-RF 2600-6.4/20δ0J

5 CRF 2600-6.420δ0J

SO 50(B)-16 RF f1=2.5 D=164 b=3

PL 50(B)-40 RF

WN 100-300 G60=3.5R10S10-32-10pam

WN 100-150 RFpampam4-15EBG40@S00-60schSC1&��801=RFFc0H�@S7RF

PL 50(B)-25 RF

SO 50(B)-16 RF

WN 150(B)-100 M S=10

wn20-150rf20Sch40649M400-1.6f-