NB/T 47021  法兰 C-RF 450-0.6L FF ⅡFFch40RFc1)-4Sch10SAF@F=3.5 RF S=3.RF0 RFS5 RJ2A=F6m386@RFRFf sss.mp

47021 C- RF450-0.6L FF ⅡFFch40RFc1)-4Sch10SAF@F=3.5 RF S=3.RF0 RFS5 RJ2A=F6m386@RFRFf sss.mp

SO350-150RF

SO 200-300 RF

WN 80(B)-16 RF S=4.5

PL 100(B)-10 RF

DN250-PN25 PL RF Ⅱ

BI 1400

WN 20(B)-100 RF S=3

PL100(B)-16 RF

abl1000-300rf/static/40s391f