Brief description about the led aluminum base pcb: 1.FR4,double-sided pcb, ... StandardNO.ITEMTechnique Data1Product TypeAluminum base,Double-sided aluminum base2SubstrateDomestic aluminum plate,TAIWAN Domestic aluminum plate,Bergquist material,Japan aliminum plate 3Base ... Board Co.,LtdContact Person / PositionEason XiangCompany Add.7 th block, 3 rank, xinqiao xinfa industrial park, shajing town, ...