瓷接线盒
porcelain covered connector
点位控制接线盒线路图
point-to-point junction box wiring diagram
电话机接线盒
telephone connect wire box
动力转向开关接线盒
power steering switch connector
发动机装用接线盒
engine mounted junction box
防潮加热器接线盒
space heater terminal box
隔爆型电机的接线盒
A Terminal Box of Flame-Proof Motor