While many people know that a 42-inch plasma television is nicer than a standard tube television or even just a flat screen television, they usually do not know why.

There were two types of code formats that used the same tube type codes, which were in use from 1948 until these companies stopped the manufacture of standard receiving tubes.

Adopting the method stipulated by GB18098-2000 Standard, the content of poisonous gas had been determined after single compound was detonated which was bottled with glass tube.