... 2)punctual delivery 3)Professional maker 4)good workmanship Black oxidize metal hanger Material: Aluminum,Brass,Copper,Bronze,Steel,Stainless ... , heat treatment, painting, powder coating, anodizing, electroplating, Chrome plating, mirror polishing.Product:All kinds of aluminum casting: include automotive ... ISO Standard and Environment Protection OEM & ODM are welcome ! Black oxidize metal hanger