GB/T 12459  弯头 DN 65-Ⅱ-290E3DMRF800S6=5=-16

DN 65-Ⅱ-2 90E3DMRF800S6=5=-16

WN80(B)-16 RF6 δs=86f

LWN400-300RFFf150 A5amF S=2.5243483R

2 A1-=6s=

wn150-25rfs=4470uu0F-4

so350b-10rf00-4.0F.0FFRF-160f6-1

WN40-100m0

WN250-150 RF0-2B16.3f-c73153S=48025-Sch43 ff450-1.004-150 RF0-1.0/90-280(A

WN 125