The registration address of jiangsu sumi sumi sumi seng seng science and technology ltd. Is located at plant no. 2 in the zinyang industrial central area, nishi city, with the registration authority being the administrative approval authority for metal tools; the legal entity's representative is the xin xinshan city, and its operations include general items: development of new materials technology; sale of new metal functional materials; sale of metal-based composite materials and ceramic composite materials; sale of high-performance non-ferrous metals and alloy materials; sale of metal materials; sale of non-ferrous metal alloys; sale of building decorations; sale of metal packagings and materials; sale of metal cutting and welding equipment; sale of metal structures; sale of metal tools; retail of gold products; wholesale distribution of hardware products; sale of construction materials; sale of synthetic materials; sale of plastics; sale of paint materials (without dangerous chemicals); sale of surface functional materials; sale of insulation and sounding materials; sale of machinery parts; sale of hydraulic machinery and components; sale of electronics and electrical equipment; sale of chemical products without licence; sale of rubber products; development of software; export and import and export of