20pcs N35 Strong Block Magnets Rare Earth Neodymium 15mmx6.5mmx2mm

Description: 20pcs N35 Strong Block Magnets Rare Earth Neodymium 15mmx6.5mmx2mm.    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.  Usually placed in  room temperature, the maximum  operating temperature is 80 ° C , and it never will demagnetization.    Specification: Shape:Rectangle;  Grade:N35;  Size:15mmx6.5mmx2mm;  Plating:Ni-Cu-Ni ( Nickel );  Material:NdFeB;  Color:Silver;  Quantity:20 pcs;  Operating temperature:≤80℃.    Applications: Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio and so on.  Electronics: permanent magnetic actuator vacuum circuit breakers, mag