Our company is registered at No. 1, Building 1, 9th Floor, Room 912, Block 1, Liangshuihe Road, Changping District, Beijing City. The registration authority is the Market Supervision Administration of Changping District, Beijing City. The legal representative is Zhang Mingming. Our business scope includes the manufacturing of metal doors and windows, technical consultation and service, specialized contracting, and the sale of construction materials, metal materials, instruments and meters, machinery and equipment, hardware and electrical appliances, rubber products, chemical products (excluding hazardous chemicals), arts and crafts, and daily necessities.The market entity independently selects business operations in accordance with laws and regulations, and conducts business activities; If the entity needs to engage in activities that require approval, it must obtain approval from the relevant authorities and conduct operations in accordance with the approved content; It is prohibited from engaging in business activities related to projects that are prohibited or restricted by the national and municipal industrial policies.