7003 aluminium pipes Standard:ASTM-B-210,ASTM-B-221,ect out diameter:15-450mm wall thcikness:2-25mm 7003 ... to 25mmlength as per customer's requirementAluminum Tube Specifications ASTM-B-210Drawn Seamless Aluminum Alloy Tubes for General Purpose & Pressure ... Alloy Extruded Tubes.Obsolete - Superseded by ASTM-B-221, ASTM-B-241 and ASTM-B-429.ASTM-B-241Seamless Extruded Aluminum Alloy Pipe & Tube for ...