弯头 DN 500-990EL/

DN500-9-90EL/

BL 200(B)-16 RFrfHG δ116)-165 c=1.561s=2.50-0.-25-f/@

WN125-25MFM/6.5a.5B-6RF0

WN40-150 RF N=49 A=114 S=27M221/

PL50(B)-16 RFF HG/11/ b=207

HG/T20592-2009 BL32-25 RF

wn125a-63 rf s=140*4.5

BL 450-6 FF-16fF)-)-2R/

47021c-fm450-123B)-16