... 3.Different surface treatment Aluminum heat sink and radiators1.Aluminum Heat sink 2.With high ... treatment:T5,T6 etc. 3.Processing:Extrution,cutting,CNC(Milling),Anodizing. 4.Surface treatment: including cutting, ... milling, turning, drilling, tapping, stamping and anodizing, CNC, etc.Remark:The dimensions can be modified according ... us for further informations. aluminum cnc machining parts