aluminum window/door profile 1.aluminum window profile 2.aluminum door profile 3.material type: 6063-T5/T6 4.good ... skiving,milling,fine blanking, deburring,CNC machining, 8)Surface finishing for windows/doors: anodizing, brushing; zinc plating; sand blasting; shot ... treatment, hard-anodized, painting and so on9)Surface colors for aluminum window extrusion/door extrusion: natrual, matt black, green, ...