New 100Pcs 20x3mm Neodymium Magnet with 3mm Hole NdFeB Super Strong Craft Countersunk Round Ring Magnets



New 100Pcs 20x3mm Neodymium Magnet with 3mm Hole NdFeB Super Strong Craft Countersunk Round Ring Magnets DescriptionDescriptions:100Pcs Neodymium Magnet 20x3mm NdFeB Super Strong Craft Countersunk Round Ring Magnets 

 Specifications:Shape: RoundMaterial : NdFeB magnetSize(DX H): 20mm x 3mm

Hole Dimeter: 3mm

Quantity: 100pcs Features:- Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. When added to Iron (Fe) and Boron (B) (chemical formula Nd14Fe21B) the resultant magnets are the Strongest magnets currently available.- Neodymium magnets are sometimes known as Neo, Neod or NIB magnets.- Neodymium magnets are usually coated Nickel-Copper-Nickel plating to prevent the iron from rusting.- Neodymium block magnet  was made of  NdFeB, have strong magnetic performances and appearance does not rust, usually placed in  room temperature, the maximum  operating temperature is 80 °C , and it never will demagnetization. Applications:1.Acoustic Field:  the speaker, receiver, microphone, alarm, stage audio, car audio and so on.2.Electronics:  permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter, meter, sound meter, a reed switch, sensors.3.Electrical Field: , CD / DVD-ROM, generators, motors, servo motors, micro-motors, motors, vibration motors.4.Machinery and Equipment: magnetic separation,  magnetic machinery.5.Healthcare:  medical equipment, magnetic health products and so on.6.Other industries: magnetized Wax, pipe descaling, magnetic fixture, automatic mahjong machine, magnetic locks, doors and windows magnetic, magnetic luggage, leather magnetic toys, magnetic tools, gifts and packaging. Package Included:100Pcs x magnets More Details:

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