HG/T 20615  法兰盖 BL 600-300 RF s=3.5a5RF050

BL 600-300 RF s=3.5a5RF050

SO 1 1/2"-150 RF

3 A43 RF S=1350510

WN 65(B)-10 RF S=3=12=36 R=)1002000-9N12-1

WN150-2500RfSO2

47021 RF1000-0.25 S=0sh

pl350(b)-40fm92-200900m400-2.53560M2.54ff s=3(B)

WN50-150 RF Sch408FA)-10R0RFF

bl300-900 rjд▒

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