GB/T 12459  偏心异径管 DN 50×10-Ⅱ-4.5REampa20/RFmJRF.2mch S=3

DN 50×10-Ⅱ-4.5 REampa20/RFmJRF.2mch S=3

WN 600(B)-25 RF S=12.7

so250(b)-10 fmH=78

wn 200(b)-100 rf26

WN15-300 RF B-6 rf10t70/

WN2000-16 RF S=21�RFJ.6rfchf/0(Fu00830R1

WN350-1500RJFcFf s

WN80b-25 M06�

BL 80-16 RF16r4.- s.25 ÃÆ

47043 m600-6.