Large student teaching magnet set horseshoe U-shaped bar ring magnet electromagnet experiment box box box box round maglev homemade compass primary school science two or three four
Magnet experimental teaching aids (standard version)
Color classification:
Paper box simple version carton upgraded version small portable plastic box (Standard Version) (recommended by the shopkeeper) large portable plastic box luxury version
Production Enterprises:
The student-based education
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Items weight estimation 0 g, subject to actual weight
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