2X Hand AC and DC Crank Generator Model Demonstration Motor Generator Activity Model Device Experimental Equipment 2 set * Hand crank AC/DC generator

2X Hand AC and DC Crank Generator Model Demonstration Motor Generator Activity Model Device Experimental Equipment 2 set * Hand crank AC/DC generator

Purpose: This machine is used for the basic structure and working principle of AC and DC generators in the teaching of junior high school physics and elementary school natural knowledge. Structure: This instrument is a permanent magnet rotatable...


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