... to Korea, Japan, Europe and America, etc.Production details:Computer heat sink magnesium die casting part Materialaluminum alloy A380,A360. ... ADC12,Zinc alloy 3#zinc,5#zinc and 7#zinc,etcDesigns1 ... 4.Passed ISO9001:2008/Rosh/SGS5.From Casting to Finished surface, Owned casting, polishing and plating workshops, We can offer Good ...