NB/T 47065.1  支座 BⅡ 120040SG Sch40S RF C=18 K=145 H=45 f1=3 n=4 A=76.1 S=2.9 rf s=5

BII120040SG Sch40S RF C=18 K=145 H=45 f1=3 n=4 A=76.1 S=2.9 rf s=5

wn200b-40 fm61501=1865 bs=9hS1=10

wn50-900RJ06.4-600FM6

wn50-300RF SRF

SO200-300RF B=2108D1=540D=600/j

WN80)-16 RF=213 WN1RF40S=23rB5h440t

wn50-900rj/ch40f

wn50-300t=7/ch4000-0.6f

WN3