use:used in PCB/FPC driling hole thinckness:2.0,2.5,2 ... % kg/square meter White melamine backup boardUse:Used in PCB/FPC driling holeThickness:2.0,2.5,2.7mmDensity: ... ,1041mm*1245mm,1092*1245mm)Production characteristic:White melamine backup board is a kind of new type of drilling cushion ... surface hardness is the same as the phenolic backup board but stabilize dimension and not easy to distort.It ...