... 2008 4.material :Spcc/SECC/AL 2012 Aluminium housing for computer description:1process cutting,punching,bending,deburring,stamping,welding,pretreatment,assembling ... ,etc 2materialstainless steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum alloy, red copper, brass ... our company. our products show: 2012 Aluminium housing for computer