NB/T 47022  法兰 RF 500-1cph40Scf4F´=36F0 RF

2 RF 500-1cph40Scf4F´=36F0 RF

PL 15(A)-16 RF b=2

WN20-2500 RF Sch80S00/ RF S=3

WN 200(A)-40 RF S=10

BL200-160GB=h40S

so50(b)-150 rf b=58

WN 15(B)-63 RF

WN 20(B)-16 T

bl 250-25 Rf

1 RF 800-0.6 δs=6.5δ=0-0.6 δ=5ch40FS=12 RF3500 RF Sch40S B=90 Y=3