1.Material:Aluminum 2.precision quality & delivery on time 3.Processing:CNC Lathe & cnc turning 4:OEM acceptable 5:ISO9001 windows bracketspecifications: 1 ... lathe, turning lathe, wire EDM, etc)Various materials(stainless steel, aluminum, brass, steel alloy, plastic etc) Finish: Zinc plated, Chromated plated ... machine4 ≤0.02 griding machine2 ≤0.02drilling machine10≤0.02 windows bracket