NB/T 47021  法兰 RF 600-1.0/2S=5a=78 b=4 rFR10chR=8-16 R

1 RF 600-1.02S=5a=78 b=4 rFR10chR=8-16 R

1 FM900-1.01080m Sc

bL50-100 RFC.

1 RF 700-1.0lB)-10RFwn25(a)-

2 a4-100mh(B)-4

WN50-150RF B=49100=60 h=156f5-16/55-ƒ-

47021 C-RF1000-0.6&wd&)-10 RF0=405mR

WN800-150RFf100-150�6/41)-406056 H

BL 500-900RF

PL