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Copper Clad Laminate(CCL)

         Copper Clad Laminate, referred to as copper clad or substrate, CCL for short, is a kind of insulating material made by the suppression of a combination of copper foil and prepreg, on which to form a conductive graphic. CCL is one of the indispensable raw materials of the manufacturing of PCB( printed circuit board). According to the NEMA standard, CCL is divided into G10/G11/ FR-4/FR-5 four kinds with epoxy glass cloth base, among which we are mainly commissioned to sell the FR - 4 substrate. Two English letters of “FR” are on behalf of the Flame Retardant,   mean it has a flame retardant. General FR - 4 is divided into two kinds, one is FR-4 rigid board with a common range of 0.8-3.2mm; the other is a thin plate used for the core of multilayer circuit board, the common thickness range of which is less than 0.78 mm.  


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