... ISO9001:2008 4.material :Spcc/SECC/AL 2012 Aluminium extrusion Enclosure:1process cutting,punching,bending,deburring,stamping,welding,pretreatment, ... assembling,etc 2materialstainless steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum alloy ... visit our company. our products show: 2012 Aluminium extrusion Enclosure