NB/T 47021  法兰 RF 600-1.0M

1 RF 600-1.0M

WN250-300RF Sch8F C

DN50-PN100 BL RF I

PL80(B)-16 RF H187

SO 1"-150 RF

WN 80-150 RF Sch40S

3 FM 900-1.0 δ0=8

» pl50(a)-10rf

WN40-2500 RJ

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