HG/T 20592  法兰 SO 400(B)-10 RF 垫7164.5140.50 S=8)-16RF0.25ch4 63 f10=70b=5

SO400(B)-10 RF 垫7164.5140.50 S=8)-16RF0.25ch4 63 f10=70b=5

WN20-40 RF SCH8000-125(B86 RF S=20 aF'

SO80-150RF B=9008s7.sorr=F105Jsch40F5la

WN25-150RF S=5.32150s=52

wn50-600rf hg/0δ1=6900FMB40F Db=610-RF-60

BL 80-600 RF Fampampa

SO 80-150 FF SCH40.5