... , Aluminum PCB.1,Layers: 1-22 layers2. Material: CME1, CME3, FR4, High TG FR4, Halogen-free FR4, Aluminium, Ceramic, PTFE(F4B, F4BK), Rogers(4003 ... , 4350, 5880), Taconic, Arlon(35N, 85N), etc.3. Max. Size: 1200mm*2000mm4. Board ... )14. DHL, UPS, FedEx, TNT (door to door) LED printed circuit board (led pcb)