HG/T 20592  法兰盖 BL 250-25 RFhtm-800�

BL250-25 RFhtm-800�

47023RF2400-1.

WN15-2500FMSch40SES5ch40rea5 R0-

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WN400(B)-10 FF S=8RF050 Rb)-10rf05F

SO 32A-16RF

WN200-300 M S=10)-100rf00m

1 M 600-1.6 δs=