Product is composed of a glass shell, a baffle plate, a bracket, a cathode, an anode and the base;Bezel diameter is not less than 80 mm and the length is not less than 235mm.Baffle plate is made by a thickness of not less than 0.8 mm, the length of not less than 45mm cross type aluminum plate, flexible and flip to upright on the bracket. Tube vacuum range of 0.13 PA (1 x 10-3 torr) ~ 0.07 PA (5 x 10-4 torr), the cathode ray tube electrode is made of pure aluminum with no less than 99.7%.