NB/T 47065.1  支座 A 3899

47065.2 A3899

B WN 700-900 RF Sch60

SO 6"-300 RF

BⅡ 19834

47065.4 A3928

3 B7006

PL60-6RFb R3 REFr0 Grv4J-RmfPL20@00

1 RF 600-1.6 δs=10

1 M 1000-0.6 δs=8 δ=60

3 B47640 RF Sch7534F Sch34506rf.4L=6.40-30J Sch12000(b)-16 rf s=12�Mfs2@2055@PRF