Aluminum printed circuit board 1.PCB Quality: UL, ISO9001:2008, ROHS compliant,SGS Test 2.Aluminum material Aluminum Based, copper ... high power LED products.3. Board thickness: 0.4~3.2 mm Aluminum board4. Copper thickness: 17~ ... CEM-1, Aluminium Base, Rogers, Taconic,etcFinish Board Thickness0.2mm-3.8mm(8mil-150mil)External Copper ... , OSP,Plate Gold, Gold Finger aluminum printed circuit board