... 1000ton in 2011,have spectrometer,can guarante quality Type3003 Aluminium alloy pipeMaterial1000 series : 1010,1050,1060,1070,1100, ... ,4032,4043,4047,etc5000 series : 5050,5052,5154,5754,5056,5083,5182,etc6000 series: 6005,6061,6063,6082 ... we have our own spectrometer, which could test the aluminium material grade, so, for our quality, you can ... as you have any instructions. 3003 aluminium alloy pipe