HG/T 20592  法兰盖 BL 150-63 RF408505050/1

bl150(a)-63rf408505050/1

WN 50(A)-25 RF S=7030 AA=27F δ

so125(b)-16mF=120 H=4300FM� SC

PL 200(B)-25 RF��5=60 h=12062

LWN50-300 M B=52

PL20(B)-10RF-4=3B)-000rrf00

WN100-600RFSCH80B)-6RFRF6505SCH1=

wn200(b)-10 m/°wn50(b)-25rf0-0/)-0F0/5 RF

W