We have tested and sold these cells for 5 years in China ,and sold them to world side for 2 years.All the cu

e provide a variety of Magnetizer/ Demagnetizer Model : MZM-L ( MZM2040/D , MZM2060/D , MZM-3040/D , MZM-30100/D , MZM-30200 , MZM-404