GB/T 12459  异径三通 DN 580×580×125-Sch100TR

DN 580×580×125-Sch100 TR

pl10b-6RF�.4FM-30RO50h40s-16R0

wn 80-150 RF sch8060fo

SO300-150FF R6-2.5fm s=55 T81-0-1

PL 350(B)-16 RF.6R=165

SO300-40M/xt-overtext-overtext-over=215 K=170 L=22

NB/T47065.2 A4-650-

WN 100(B)-10 RF S=4.5-=9

47023fm500-4.0