... experience3.ISO9001:2008 Spec. Model Number Tablet PC Aluminum Back ShellDescription Aluminum Housing for Tablet PCMaterialAl.Specifications Depends on your drawingSurface treatmentSelf ... , brass, copper etc.Process: cutting, stamping, perforating, bending, welding, plating, pad/screen printing, assembling Equipment: tonnage 5T-300T punching machines, CNC ...