... After extrusion,we used CNC process,and surface treatment to process the surface. Production Detailed DescriptionProduct Name:Aluminum Heat SinkMaterial:AL6063Finished:Mill ... of production service from extrusion,cutting,stamping,cross-cutting, CNC machining,bonding,Sand blasting,buffering,anodizing,painting and assembling with ... CIF, DDU, DDP.Payment terms:L/C, TT, Western union led lighting heat sink