The PCB stands for Printed Circuit Board Printed Circuit Board is also called.
Currently we are using electronics or electronic components in most of the printed circuit board is used. PCB-mount electronic components and functions of the signal and the electrical characteristics of the wiring for the electrical connection are responsible for the human body when compared to the importance of the skeletal and nervous system have a corresponding. 

METAL PCB

The material of the insulating layer and the FR-4 insulators CEM3 non-metals (aluminum, galvanized steel, silicon steel, etc.) with the PCB said.
Strong heat that generate a lot of heat is used for electronic information and communication devices.. 
    

QUALITY METAL(Aluminium) 
PURPOSE LED LIGHTING, BACKLIGHT UNIY(BLU) etc.