aluminium pipe thickness:0.1mm-6mm,diameter:10mm-300mm length: ... ASTM, EN ,BS, GB, DIN, JIS,etc.coloursGolden, rose gold, titanium golden coating, champagne gold, Brown,Bronze,Black,sapphire blue, Purple ... Besides, we have our own spectrometer, which could test the aluminium material grade, so, for our quality, you can really feel ... Please contact me as soon as you have any instructions. aluminium pipe