... , 5N, 6N, 7N purity grade) and indium products.Our company specializes in producing indium ingot(in 2N,3N,4N, 5N, 6N, 7N ... grade) and indium products.Indium ingot:Chemical contents :In 98-99%In 99.99%In 99.995%In 99.999%In 99.9999%In 99.99999 ... It mainly used in ITO film, solder in electronic industry, sealing element in low temperature and vacuum area, solubility anode and nuclear reactor control ...