... Aluminum substrate PCB: 1) Material: Aluminum substrate; 2) Layer: Double-sided PCB; 2) Copper: 1 OZ; 3) Soldermask: Black Printed ... Circuit Board (PCB) Manufacturing Capabilities MaterialConstruction TechnologySingle-sided PCB,Double-sided PCB,Multi-Layer PCBMaterial Type94VO,FR-4,CEM-1, ... . PCB Process PCB Quality Assurance Aluminum substrate PCB Double-sided black color Aluminium Core PCB