NB/T47021M500-1.6

WN20-1500 M Sch80

BL2000-2.5FF000-1.6

WN25-2500 RF S=

HG/T20592-2009 PL50(B)-16 RF

WN250(B)-16 RF16 Mδ=58RFRj81.025f

pl20(b)-6 rf6S

so100-150RF150(a/5

wn 20(b)-10 rf s=2.5

lwn25-600 rfj

hg/t201615 bl25-150rf5m

SO15-150RF ANS-1F