HG/T 20592  法兰 SO 150(B)-6 RF C=3

SO 150(B)-6RF C=3

WN65-150RF SCH40S/S/m

LWN 20-300 RF B=21 H=422.5

wn 125(B)-16 RF

BL100-16 RF06S=F4.5

47021 rf450-1.0/

lwn40-150 rf h=2501500r

wn25-150mfmRn=26 rfa FF D-F6=52 H=1

wn450-1500rjsch1610h80s FF-4.1=0 rf s50400/5/SCH140-

47065.2 A5912504