GB/T 12459  异径三通 DN 700×700×350-Sch10TR

DN 350×350×700-Sch10 TR

WN80-300 RF B=7

blwn25-300rf/4C

BL700-2.5RF rf sch80h200646 rfF 12-

WN250-600RJ0F/161000

WN 45(B)-25 RFf50RFG865Sc70(B6 T1300×800-Sc

pl 250(B)-10 RF25-137-3002 nSc

WN100-300 RF,

bl100b-25 fm

WN15(B)-16RF S=22*1S=8rjRF02K=2H