HG/T 20592  法兰盖 BL 500(B)-16 FF/ s.0 s��n TR0/6RF=150 C=23 f2=45-0.o

BL500B-16 FF/ s.0 s��n TR0/6RF=150 C=23 f2=45-0.o

BL 80-16FF

WN600-150RFS12(b)-1/HG/T

a380000

WN 150-300 RF Sch40S-1.0/67-130SHG/u002forEL-1

PL50-16RFr Sch80�п÷п╒п┴п╟п▒я┌б∙�

so50-25m)1000-1.0rf

WN 40(B)-25 RF S=3.5/u

SO200