GB/T 12459  异径三通 DN 580×580×500-Sch40TR

DN 580×580×500-Sch40 TR

wn65(b)-25 m c=20/6/u0092/017(BFRF f2=

BL 40-16 FMRF)5100=6 K=120

WN350(B)-100 G RF sc0(b b=706/CH160

SO25-300TS0-h00

PL250(B)-16 RF b=3

HG/T 20592-2009 PL25(B)-25 FM26100 RJ Sch406 RF S=3

WN 450(B)-10 RF S=

wn80(b)-900 rf s