... PCB, Multi-Layer PCB, F4BK PCB, Ceramic PCB, Rogers PCB, Aluminum PCB.Layer: 2 Layers Material: ceramic, F4BK , Alu, Rogers, High Tg FR-4, FR-1, CEM1,CEM3, FR-4 ... ,etcBoard Thickness: 0.4-6.0 mmTreatment : Lead Free HASL, ENIG, Immersion Tin, Immersion ...