HG/T 20592  法兰 PL 50(B)-16 RF D= b= d=100 C=26 f1=34

PL50(B)-16 RF D= b= d=100 C=26 f1=34

so150-16t aa=/0j0S16RF0h40s451

LWN20-150 RFSch/4145-/F|020 d1=1040h1

Bl50b-16rf3

hg=t20615wn200-100rfh1=11

LWN 50-300 RF B=52 H=211

wn200-900rjsch401.60J55f1.6/57-

WN 50(b)-100 FM

2 B5RF(B)-10 RF)-16 RfA00F条B)

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