... stainless steel cable tray:1process cutting,punching,bending,deburring,stamping,welding,pretreatment,assembling,etc 2materialstainless steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum alloy, red copper ... -2008Key Specifications/Special Features:Materials: carbon steel or stainless steel Surface treatment: powder coating, painting and ... products show: good quality stainless steel cable tray