... Steel ,Aluminum ,Brass ,etc[2] Process for Machines :NC Turret Punch Press ,NC Bending Machine ,Machines for Cutting ,Bending ,Polishing &Brushing [3 ... ]Surface treatment :Plating ,Powder Coating ,Anodizing ,etc {4}computer case sample is avavilable ... time 10-20 days after deposit received black hot compter case