HG/T 20592  法兰盖 BL 40-6 RF 453=463 DN=40F32-2305T20592-200S=4.56=14-1.0408RFRFS=3

BL 40-6 RF 453=463 DN=40F32-2305T20592-200S=4.56=14-1.0408RFRFS=3

WN 3"-150 RF

BL40-150 RF Sch40/0 H=Sc5wn300-=1200ch4FFRF2 b= B1=1600sF10000-0

WN 50(B)-16 RF S=4

WN300-600 RF S=/

wn250-160m s=20

47023M300-4.00r75/12=6

JSO80*150-300 RF

LWN40-300