high-precision hard, used for aviation, spaceflight, petroleum, military industry, new energy, heavy ... 90MPA 2.Elongation:>20% 3.Surface:Smooth1060 Aluminum Tube for refrigeration1060 Aluminum Tube extruded aluminum tubealuminum hexagon tube Characteristic ... 16 10Elongation%≥37% high-precision hard aluminium tubes, used for aviation,spaceflight,petroleum,military industry, new energy,heavy industry ...