... :2008 4.material :Spcc/SECC/AL good quality stainless steel cable tray:1process cutting,punching,bending,deburring,stamping,welding,pretreatment,assembling,etc ... seam welding are available 6.EquipmentWe own laser machine 2 sets, CNC punch machine 6 sets7itemtool sheet metal .network cabient size600*600mm ... visit our company. our products show: good quality stainless steel cable tray