Hongkong Trenda Co.,LTD is a manufacturer of Copper-Aluminal bimetal composites materials, which is a new kind of metal with aluminum core and copper cladding.. The two metals are combined together through our patented technology which we call Oxygen-free Semi-molten rolling compound technology. This technology solves the technical problems of oxidation and eutectic of copper-aluminum composite. Our composites materials are tested in many ways and proven over many years as a replacement material for pure copper in some applications. Our mission and vission is to be the preferred and well-known supplier of Copper-Aluminum Bimetal Composites materials. Replacing copper with Copper-Aluminum Composites in some applications, reduce energy consumption, support the global low-carbon economy.Compare to pure copper material, Copper-Aluminum Composites materials’ advantages are below. 1.Cost down much: less copper materials, greatly reduce the cost. 2. Light weight: the density of Copper-Aluminum Composites is only 37%-40% of pure copper, and the length (volume) of the same weight is 2-2.5 times of that of pure copper.