法兰 FM 900-2.5R

NB/T47022 FM900-2.5R

wn200-300 rf sch40 n=246 a=199 s=10

BL150-16RF684.8RF S=100625A0-16RFRF

wn65(b)-25 m

hg/t20592-2009bl150(b)-40 rf6-260 δ

wn25(b)-100 m S=10 C=44 h=255 L=222 H=42

HG20615-WN20-600RJFM S00bl100-16

WN100-16RF

wn50-40rf s