1high power aluminum clad pcb board 2.al: 1.6MM copper foil 1oz 3.thermal conductivity ... thickness50 75 100 125 150 micron 07Metal base typeAluminum,Ferrum,Copper,Stainless steel08Metal base thickness0.5 0.8 1.0 1 ... Colorwhite, black, blue, yellow, red1high power aluminum clad pcb board2.aluminum base: 0.8-3.0MM(1100,3003,5052,6061)3 ... ,HASL(Pb free), immersion gold,flash gold aluminum clad pcb board