Package Content--You will receive 1pc aluminium sheets measuring approx. 15.5cm/6.1 inch wide, 20.5cm/8.07 inch long and 3mm thick, ideal for mechanical cutting 6061-T651 Aluminium--Our aluminium metal plates are made from 6061-T651 aluminium alloy, which is highly hard, corrosion resistant, oxidation resistant, has good machinability and weldability, oxidises well, is harder than 5052 and 3003 series aluminium plates and is ideal for hard machining conditions Flat and Smooth--The surface of aluminium plates are carefully processed by simple brushing effect, no burrs or scratches, smooth and flat, no cracks or air holes, uniform and accurate thickness, suitable for precision machining Double-sided Film--Both sides of the aluminium sheet metal plate are covered with a wear-resistant and durable protective film, which can protect the aluminium sheet from damage during transportation and make it better preserved and durable; the protective film needs to be removed when in use Widely Used--This 6061 T651 aluminium sheet can be widely used in trucks, construction, transport, electronics, couplings, marine fittings, trams, furniture, machine parts, heat-treated alloys for windows and doors, and DIY projects