Brief description about the led aluminum base pcb: 1.FR4,double-sided pcb,1.0mm,1OZ,Lead ... in PCB,s Processing Capability Of StandardNO.ITEMTechnique Data1Product TypeAluminum base,Double-sided aluminum base2SubstrateDomestic aluminum plate,TAIWAN Domestic aluminum plate ... with MIL-SLD-105 II,heavy defeat AQL=0.65,light defeat AQL=1.022Quality StandardsNational andards:GB5488.2-88 Metal ...