CEM3 1W thermo Layer count: 1~2 layer Material: CEM3 Thickness: 0.8mm/1.0mm/1.2mm/1.6mm Copper weight: Half oz/1oz/2oz Thermal conductivity: 1W/m.K Surface treatment: OSP/HASL/HASL LF/IMM. TIN/IMM. AG Max size: 1500*500mm