南京大中电极实业有限公司成立于1999年，是专业从事电阻焊电极材料---铬锆铜、镍铍铜、铍青铜等研发生公司。本公司采用真空熔炼、热锻（热挤）、固溶、冷锻（冷拉）、时效工艺生产的铜合金，广泛用于电阻焊系列电极材料、模具及电机制造。本公司利用自产材料的优势生产成品电极、电极帽、滚焊轮、短路环及各种导电嘴和螺柱焊夹头，广泛用于汽车、航空、牵引电机及钢结构等领域。客户遍及欧美、大洋洲、东南亚、中东及全国二十八个省市，尤其是螺柱焊系列夹头深受德国、西班牙、美国及北美地区国家的青睐。 Founded in 1999, Nanjing Dazhong Electrode Products Industrial Co., Ltd. specializes in the research, development and production of resistance welding electrode material, namely the copper alloy and its products. The company has advanced production technology and sophisticated processing equipment, as well as a complete range of test measures. Using the vacuum melting-hot forging-solid solution-cold drawing-aging technology, the company produces the electrode alloy chromium-zirconium-copper (CuCrZr), nickel-beryllium-co