... 1, best price 2, high quality 3, quick delivery 4, considerate service high-precision multi-layer FR4 pcb 1 ... Capability:Layer: 1 to 12 layersMaterial type: FR-4, CEM-1, CEM-3, High TG, FR4 Halogen ... Free,Board thickness: 0.35mm to 3.0mmCopper thickness: 0.5 ... oz to 3.0 ozCopper thickness in hole ...