N52 50*50*20/25/30 mm blocco quadrato super neodimio cubo magnetico terre rare

N52 Block 50 x50 x25mm Super Strong Rare Earth Magnetic Neodymium Magnet. Size:40 40 20mm，50 50 20mm，50 50 25mm，50 50 30mm. Beautiful and practical, durable, strong magnetic force. Material :NdFeB. Color:As shown.

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