... Board,Printed Board, CCL FR4, FR1,XPC, CEM-1 etc CCL Sheet CEM-1Copper Clad Laminated Sheet (CCL) Characteristic and Application: ... grade electronic instruments.2. FR-1copper clad laminated sheet/CCL consist of bleached wood pulp paper, impregnated with flame ... electrolytic copper foil. 3. XPC Copper clad laminated sheet/CCL consist of bleached wood pulp paper, impregnated with modified phenolic ...