... experience3.ISO9001:2008 Spec. Model Number Tablet PC Aluminum Back ShellDescription Aluminum Housing for Tablet PCMaterialAl.Specifications Depends on your drawingSurface treatmentSelf ... : tonnage 5T-300T punching machines, CNC engraving machine, bend presses, plate cutting machine, welding machine, wire cutting machine etc. Surface treatment: painting, anodizing, sandblasting ...