NB/T 47023  法兰 FF 800-6.4f285F/data

47023 FF800-6.40f285F/data

WN 2"-150 RF Sch80Sh4050 RF Sch160

https:/www.hgcad.com/@WN100(B)-16 RFmpampampampampampampa

WN 700-300 RF D=10

47023 -fm 500-1.0

WN 250-150 RF S=30

47023 C-RF2600-1.

PL25(B)-25 RF，20592

WN400-150 RFR400/0bRF

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