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assembly devices

assembly devices

assembly devices

assembly devices

1

Colours of insulated conductors used in electrical assembly devices

电工成套装置中的导线颜色

2

Colours of indicator lights and push-buttons used in electrical assembly devices

电工成套装置中的指示灯和按钮的颜色

3

Assembly devices and machines : construction of drawers and pull-outs

安装用具和安装机：组装各类抽屉

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