NBN C 61-112-2-1990 0625 《家庭和日常用电源插座 扁平插头的特殊规定 旨在为更换第二类装备中的不可拆卸的转换插头，接线盒和1300瓦赫3500瓦的电插座，第二类插头设备中的2，5A-250瓦双头插头，设备用插座和直流电用插头》.pdf

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