The registration address of hangzhou heiner materials ltd. Is located in 5 houses, 716 rooms, located in the cave of hangzhou, zhejiang province, and is registered as the market supervision authority of the cave of hangzhou city, represented by a legal person, song lanfang, and covers general projects: development of new materials technology; sale of non-ferrous metal alloys; sale of metal materials; sale of technical services, technology development, technical advice, exchange of technology, transfer of technology, extension of technology; sale of rare earth function materials; sale of synthetic materials; sale of graphite and carbon products; sale of new metal functional materials; sale of high-performance non-ferrous metals and alloy materials; sale of fire-resistant materials; sale of chemical products (other than licensed chemical products); sale of metal-based and ceramic composite materials; sale of non-metal mines and products; sale of specialized chemical products (other than dangerous chemicals); sale of special equipment; sale of machinery equipment; lease of machinery and electrical equipment; installation of general machinery; maintenance of electronic and mechanical equipment (other than special equipment) (other than special equipment) in addition to projects subject to authorization under the law, activities are carried out autonomously in accordance with the law and in accordance with the operating licence)。