Copper Clad Laminate Sheet FR4 Copper Clad Laminate,Pcb Base Board,Laminated Board,Printed Board, CCL FR4, FR1,XPC, CEM-1 etc Copper Clad Laminate Sheet ... devices, electronic toys and etc. 4. CEM-1 copper clad laminate consist of bleached wood pulp paper, impregnated with flame retardant ... , Hi-Fi acoustic devices and other high grade electronic appliances. Normal Thickness: 1.0mm, 1.2mm, 1.6mm, 2.0mm ...