Aluminium space tubes for insulated glass Welded Material: A1060 SIZE:6A,9A,12A Aluminium space tubes for insulated glass,hollow glassSIZE:6A,9A,12A,15A,16A,18A,20A,24A,29Asurface process :Mill finished, AnodizingPackage:Carton Box packageprovide OEM product.Material: AA1060