As a professional copper aluminum manufacturer Qingdao xindeyi always believe that technology lead the development direction of the company，in the pasted ten years ,the quality of our products have reached the international level and have been sent to all of the world. Our main products are: copper bus bar, aluminum bus bar, copper, aluminum, copper-aluminum flexible connectors, copper-aluminum transitions. In order to solve the problem of large current bus bar’s connection fever, gas-guzzling problem, we introduce and develop the new generation of casting large current and large size of copper-aluminum transition bus bar connectors, copper flexible bus bar connectors, adopt the most advanced (digital IGBT control MIG/MAG) polymer microcomputer waveform control, diffusion permeability gas shielded welding. The advantages of our products are as follows: 1. good stability 2. long service life 3. convenient installation 4. free maintenance 5. the shape of the products are designed and produced according to customers’ requirement.