GB/T 12459  异径三通 DN 1400×1400×500-Sch10TR

DN 500×500×1400-Sch10 TR

BL200-300RF19-201ceRvF0rf40官=F0-2RF(

bl200-150 ff/16 FF78-155 B1=4(BRF

WN 600-150 RF S=26

WN25(B)-160 M S=F＝ S=2sm0R0

bl500(a)-600m/0rf=600 RF0-0--16

WN100-150 RF Sch120

wn100(a)-16 rf s=4mm/sch10

WN50B)-16FMFWN350-F