Copper Clad Sheet 1.Thickness:0.6,0.8,1.0, ... H,H/0,0/0,1/1,1/H. Copper Clad Laminated SheetIFR4 Copper Clad LaminateThickness:0.6mm,0.8mm,1.0mm,1.2mm ... other lines.FR4 ccl technical date: FR4 TECHNICAL DATA SHEET NOITEMUNITINDEX1Surface resistance after damp heat and recoveryMΩ1.3x1052Volume ... measling or blistering or delamination13WarpageBowmmMax: 18TwistMax: 20 FR4 Copper Clad Laminate Sheet