1,heat sink for PCB, , 2,chips heatsink., 3,ISO9001 certified factory. 4,20 years experience direct manufacture 5,OEM/ODM Application range; Heat sink for PCB, electronics heat sink,high-power heat sink,chips heatsink,VGA heatsink,anodize heatisnk,heat redistor.Process flow;1, extrusion mould designing2, Opening mould - Die trial3, first article assurance4. extrudrd aluminium mass production5, ...