HG/T 20592  法兰盖 BL 40-6 Mf5rfmpamFFFF52 hg16 RF S=5500HF=2-150

BL40-6mf5rfmpamFFFF52 hg16 RF S=5500HF=2-150

WN25-150 RJ Sch40200-s/@WN10f1000-

WN125-900 RF=50 h=11914fS=-1 S

WN 8"-300 RF Sch20

WN25-25RF a=63 s=11 Sb\u1= S=1296 F

WN250(B)-300 RF0-6

WN250-150 FF D=406.4 C=28.6 f1=1.6 H=101.6 N=304.

WN 400(B