Hiren Aluminium Limited supplies Pure Aluminium EC Wire Rods. Hiren Aluminium Limited is an ISO 9001:2000 accredited company. Specifications of Pure Aluminium EC Wire Rods are: Specification: As per ASTM 1350, ASTM 1370 Purity: 99.5 to 99.7 % Sizes: Wire Rods: 7.6, 9.5, 12.5, 15 mm diameter Wires: 0.25 mm to 7.6 mm diameter