The present invention relates to just a common internal heating electric soldering iron, in the handle of which a small switch is installed, and on the switch a diode is connected.
本发明涉及一个普通内热式电烙铁，在把柄上安装一个小开关，在开关上巧妙地连接一个二极管即可。
The present invention relates to just a common internal heating electric soldering iron, in the handle of which a small switch is installed, and on the switch a diode is connected.
本发明涉及一个普通内热式电烙铁，在把柄上安装一个小开关，在开关上巧妙地连接一个二极管即可。
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