NB/T 47022  法兰 C-RF 500-0.6/20δN200-1252--2m

2 CRF 500-0.620δN200-1252--2m

WN40-300RJ SCH40S RF Sch40RJ16F RF RF/0 FF /data/src�

WN 40-300 RF Sch40-16.5Sc H1216000B-16.

WN15(B)-16RFS=R=5�

pl25(b)-16rf b=5f0 RFs1600

so20-25Gh50- Sch40SF0RF.4 �6..20FS92-=8 ScFM3

bl250(a)-150rf16 fm s=60

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