... .Materials: cold roll steel and galvanized sheet 2.Surface: zinc plating or powder coating 3.Strong weldment Cable Tray, Made of ... welding,painting,power coating 4 quick response 5 high precision ::+/-0.05-0.1mm 6 process cutting,punching,bending,deburring,stamping, ... welding,pretreatment,assembling,etc 7 thickness 0.5-15mm 8 material steel, stainless steel, aluminum, ...