... ton-180 ton,Materials: Aluminum Alloy ADC-12 .A380 A382 .Machinery:Drilling ,Threading ,CNC machineFinish: chrome, zinc, gold-plated, black phosphate ... ) steel,etc2 Process: trim,grind,drill,CNC etc3 surface treatment : shot blasting , sandblasting or paiting , anodize , electroplating, chrome-plated,T4,T6,or ...