100 piezas imanes fuertes N50 disco de tamaño redondo 2 mm x 1 mm imán de neodimio tierras raras

Magnetisation: N50. Magnet Type: Neodymium (Rare Earth Magnet). Neodymium magnets are usually coated Nickel-Copper-Nickel plating to prevent the iron from rusting. Quantity: 100pcs. When added to Iron (Fe) and Boron (B) (chemical formula Nd14Fe21B) the resultant magnets are the strongest magnets currently available.

eBay