... Design,Quick Sample 4) OEM OK Polished Aluminium Window/Door Knobs for Door/ WindowSpecification:Material: Alluminum Alloy ... SizeSurface Treatment: Anodized, Power Coating, Sandblasting, Polishing, Grinding, Painting, Screen printing, Tumbling , Electroplating, Fabrication: Sawing, Deburing, Milling, Drilling ... door knobs for all kinds of door or window in Industry, Architecture, Decoration..and so on ...