... Board, CCL FR4, FR1,XPC, CEM-1 etc Copper Clad Laminate Sheet FR4Copper Clad Laminated Sheet (CCL) Characteristic and Application: 1 ... . FR-4 Copper clad laminate/CCL consist of E-glass fabric, impregnated with epoxy resin ... devices, electronic toys and etc. 4. CEM-1 copper clad laminate consist of bleached wood pulp paper, impregnated with flame retardant ...