Ch?n ch?t li?u tem nhãn: Ch?t li?u tem nhãn c?n ???c l?a ch?n phù h?p v?i lo?i s?n ph?m và m?c ?ích s? d?ng.At the top with the column is definitely the electron gun which couples to your large voltage resource utilized to established the kinetic Power with the electron beam. Standard accelerating voltages range from 80 kV nearly 300 kV. The