... 2.ISO,EN,GB... certificates 3.Various surface treament Aluminum Extruded ProfileGuang Ya Aluminum CO.,LTD.We are the biggest manufacture of aluminium ... in china and we are the only one supplier of aluminum profile to the China Beijing Olympic game 2008 such as the ... ,BlastedExport Experience:10 Years All Over The World.Extrusion System Alloy:Various Alloyseg.,6063,6061,6082,6005,6060,6101,6463,7005 ...