... CCL FR4, FR1,XPC, CEM-1 etc Copper Clad Laminate Sheet FR4Copper Clad Laminated Sheet (CCL) Characteristic and Application: 1. FR ... consist of E-glass fabric, impregnated with epoxy resin and clad with electrolytic foil. It has excellent electric, mechanical and ... bleached wood pulp paper, impregnated with modified phenolic resin and clad with electrolytic copper foil. It has high dimension stability, ...