NB/T 47065.1  支座 A 10000-1.0 /u00c3

hha10000-1.0 /u00c3

Th(NPT)50-16 RF-1

WN15 -300 RF 904L

4 A30 S=1

TPB-2 S1=10

nb/t47021 g1000-0.6

WN20(A)-10RFS=3/-25 tRF-6rfF5/50B)-25rf6 r

bl50-16 ffRF-30

wn100-300 rf/s

wn200b-25rf s=93rffF HG/T20615.80 mtWch4FFFRFm1. RFSFMfd=185/6.54=146re10f6