For Aluminum PCB, we can do 2L with three structures as below,
1) Copper foil+Dielectric+Bare Aluminum+Dielectric+Copper foil to laminate,
2) 2L FR4+Dielectric+ Bare Aluminum board to laminate,
3)Copper foil+Dielectirc+Copper foil+Dielectric+Bare Aluminum board to do lamination twice,
For Copper base PCB, we can do single layer and Double layer with thermoelectric separation PCB,
Our productions are used in automobile, Stage lighting, Light source, Power, Outdoor lighting, Digital productions,Thermoelectric separationg copper PCB and Thermoelectric separation Al-Copper PCB,