... 1.OEM guitar part 2.gold,Nickel or Chromate platin guitar style strap buttons,Economy nickel finish Fender style strap buttonsWe provide ... , punching,milling,machinging,drilling,etcSurface treatment:Polishing, chrome/zinc/nickel plating,power coating, natural anodization, galvanizing, satin, etcFile Formats:Pro/Engineer, SolidWorks ...