... high power magnesium alloy LED heatsink 2.MAT: magnesium alloy 3.Finish: plating anodizing painting 4.OEM&ODM 5.ISO9001 Product name4W high ... power magnesium alloy LED heatsinkDie casting max size Aluminium die casting parts ... : 380, 13, 360, 390, 413Zinc alloys: Zamak 2, 3, 5, 7, ZA 8 and ZA 12Mould materials8407,H13,P20,etc.Mould ...