Chi ti?t D?ch v? in tem nhãn m? ph?m ?em l?i s? ?n t??ng cho th??ng hi?u D?ch v? in tem nhãn m? ph?m ?em l?i s? ?n t??ng cho th??ng hi?uAt the very best on the column is the electron gun which couples to your higher voltage source used to set the kinetic Power of your electron beam. Typical accelerating voltages range from 80 kV as much as 300