... iron,zinc alloy,aluminum alloy,aluminum and so on .Software for drawing: PRO/E, auto CAD,CAD,PDF and solid ... bending machine,floding machinewelding machine and various specialized lathesProcess:stamping,punching,pressing,machining,welding,bending & metal fabrication,etc Surface finish: Polishing, zinc/chromate ... pictures are only to show our productive capacity ,not for sales . custom metal lock box