... the aluminium pcb: 1.FR4,double-sided pcb,1.0mm,1OZ,Lead Free 2.17 years experience in PCB,s Processing ... Capability Of StandardNO.ITEMTechnique Data1Product TypeAluminum base,Double-sided aluminum base2SubstrateDomestic aluminum ... High-conductivity5SurfacePlated gold,Imm gold,Plate Silver,Imm Silver,OSP,HASL,Imm Tin6Production Size500*600MM,500*1200MM,1200* ...