弯头 DN 50-Sch10S45ELF40 RF S=3F S=3-16

DN 50-Sch10S 45ELF40 RF S=3F S=3-16

lwn32-900fm625rfFM

so 20-40 tgcF0RFs=4h

47023 RF900-4.5

WN20-150FF0s-1f

wn80(a)-160m

47023 fm400-1.0/36-97

BL40-2.5RF

法兰wn50-160rfrf

pl300(b)-25 rf δ44/4/-16RF=28ch40054/fR70-165G RF S=4F S=105250-600 RF