SENJINGHUA Teaching Instrument Foil Electroscope Physics Electrometer Electrical Demonstration Experiment Equipment Teaching Equipment.
SENJINGHUA
✔ Test the insulation of objects and demonstrate induction charging, etc. ✔ Foil electroscope ✔ Size: 11.5*7.5*15cm/4.5*2.9*5.9in ✔ Scope of application: teaching supplies ✔ Features: not easy to wear / firm and stable
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