1.Aluminum alloy profile; 2.Variety of surface treatment; 3.Good quality; 4.Excellent Service. powder coating white color aluminum casement door profilesAlloy temper : AA6063-T5/T6Finished: Electronic Coating : bronze, champagne, gold, black,silver,etc.Wooden finished : apple wooden, walnut wooden, sapelli,etc.Anodizing : silver, bronze, champagne, gold,etc. Sand Casting : silver, champagne, gold ...