NB/T 47021  法兰 C-RF 300-1.6 δs=60 rf SS

1 CRF 300-1.6 δs=60 rf SS

SO 200-16 RFpampampampampampampampampampwd=&

WN200-150 RF Sch405F50rfRF S1=170Fm1100

BI 1800

SO150-16RFRFFF5n=S=

WN 80-900 RJH80C=20 f1=34

WN 200-300 FM Sch160ampampampampRFc0RFcinFF610 RF Schh407.5 R

WN25-600 RF S=9.0R215