NB/T 47021  法兰 C-RF 700-1.0f s009s-150-

1 c-RF 700-1.0f s009s-150-

BL FF 5K 150A4pampamp

20592PL300B-25FM5.6/)-1300rf,& bl/

PL350-16 FFF S/

1 CRF 900-1.0 δs-150 RF/fmB

WN 100(B)-16 RF Sch40

WN 50(B)-100 RF S=3.5

1 RF 300-1.6 δs2.6 RF09RF C=320 RJrf4mp

WN 250-300 RF45-/20615

so15B-10rfFAF