Shanghai Yunchang lighting lampholders Ltd, is a professional production lighting lampholders enterprises.
上海云昌照明灯座有限公司，是专业生产制造照明灯座的企业。
2
Produces including lampholders porcelain lampholder fuse box insulator knife switch adapter block porcelain socket porcelain etc.
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。
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NOTE 3 the point of separation of the cores of a multicore cord and the point where insulated wires enter lampholders are examples of places where thermocouples are positioned.