In recent years, great changes have taken place in the varieties of copper processing materials in China. In close combination with the market and the development needs of science and technology, remarkable achievements have been made in the development of new products and new materials. The traditional copper processing materials have gradually completed the transformation to modern copper processing materials. Its important feature is to develop in the direction of high precision, high performance, environmental protection and energy saving, Many products have become well-known brands at home and abroad and enjoy a high reputation in the domestic and foreign markets; The product quality has been steadily improved, and the product standard level has been in the international advanced ranks. In addition to producing according to national standards, the main copper manufacturers can also directly accept orders from the standards of major developed countries in the world, which indicates that the production of copper processed materials in China is further internationalized; In order to meet the various needs of the national economy, science and technology for copper, copper processing enterprises have also formulated many internal supply technical standards. The main copper materials are as follows:


1. Calendered copper foil & nbsp
Calendered copper foil is an important material for making flexible printed circuit board (FPC)


2. Lead frame copper strip & nbsp
Lead frame copper strip is the key material of integrated circuit


3. Transformer copper strip
It has been widely used in oil immersed transformers and has great market potential. It has the advantages of impulse voltage resistance, strong short circuit and overload resistance, high efficiency, flame retardant, explosion-proof, low noise, small volume, light weight, maintenance free, low operation cost, high use safety and environmental protection adaptability.