电瓷件、瓷灯头、瓷灯座、座熔断器、绝缘子、闸刀开关、瓷接器、瓷插座等各式灯座。
Produces including lampholders porcelain lampholder fuse box insulator knife switch adapter block porcelain socket porcelain etc.
有两种，一种是安装在墙上的开关另一种是安装在灯座里的。
One type of the sensor is installed at the switch on the wall the other is installed in the lamp base.
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