High quality, good price aluminum profile for windows&doors with various surface treatments and colours ... , Black, Champagne, Golden, Wooden, Colourful Coating,etc.2. Any colour based on customer's requirement or samples. ... Drilling; 4.Punching; 5.Bending; 6.Cutting; 7.Turning, etc.Material Alloy 6063,6061,6005,6463,2014 ... 1. GB5237.4-2008 equal to EN12020-1.2(2001); 2. GB/T6892-2008 equal to DIN 1725 3 ...