HG/T 20592  法兰 SO 400(B)-6 T§â5FM.6008=223=52D=5

SO 400(B)-6 T§â5FM.6008=223=52D=5

hg=t20592-2009pl200(a)-6 rf

WN300-300 RJ S=12.70-150 rfFC=1=5

WN 150(B)-63 RF

pL150B- 10RF

20615 WN15-600 RF

SO 2"-150 RF f=2

LF/SE 100-150 RF

WN65B-10FM01ГўвҖҡВ¬Г

WN20B)-150RF/20 TR&qu��¬â€�