7003 aluminium pipes Standard:ASTM-B-210,ASTM-B-221,ect out diameter ... Pressure Applications.Tube manufactured by cold drawing a true seamless extruded tube made from hollow extrusion ingot (cast in hollow form ... . Covers only 6101 alloy in several tempers.ASTM-B-345Seamless Extruded Aluminum Alloy Tubes & Pipe for Gas & Oil Transmission and ... ,8021,8050,8150,8079,8090,8A01,8A06, 7003 aluminium pipes