Aluminum PCB/LED PCB,Single-sided PCB,Aluminum base for LED PCB,Aluminum pcb with assembly,rigid aluminum PCB, ... aluminum PCB clone single-side aluminum base board,Aluminum PCB/LED PCB Materials Aluminium (AL), epoxy resin ... diameter:0.3mm Max.board size:600*1200mm Treatment : Lead Free HASL, ENIG, Immersion Tin, Immersion Silver, OSP , Gold palting etc ...