Function description of string lamp pressure test device: manufactured according to the GB7000.9-1998-11.3 standard corresponding to Figure 2, to check whether the contact piece of the lamp holder will be displaced inside the lamp holder due to friction. Professional manufacturer of string lamp pressure testing device
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DESCRIPTION

串灯压力试验装置功能说明: 依据GB7000.9-1998-11.3标准内容对应图2制造,检验灯座接触片在灯座体内是否会因为磨擦力而产生位移。 单接触导体:
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