... Grille for mobile phone and tablet PC. Item Namemetal speaker grilleMaterialStainless steelMaking processProgression die, Stamping, deep drawing, Bending, Punching, ThreadingSurface treatmentPolishing, ... Anodize, Zinc/Nickel plating ,Powder coating, SandblastApplicable industryMobile phone, Tablet PC.CE ISO9001: ...