1)Materials: Aluminum. 2) Machinery: Drilling ,Threading ,CNC machine 3) Finish: zinc, e- ... to your special requirements, with drawing and blue prints.Materials: Aluminum Alloy ADC-12 .A380 A382.Machinery: Drilling ,Threading ,CNC machineFinish ... , black phosphate, painting, e-coating, powder coating, galvanizing, and anodizing aluminum die casting produce