Zhang deok-chun, a legal entity, is represented by zhang deok-chun, a company with a registered address located in the northern part of sun dynasty village, grande sang-tung town, grand city county, grand-city market supervision authority, and operates in the following areas: the development, development and development of new types of temperature measurement techniques, materials and products; the installation of temperature measurement systems and safety monitoring systems; the production and sale of: temperature measuring cables and temperature measuring equipment; the processing and sale of: smart ventilation equipment, circular fumigation equipment, drying equipment, delivery equipment, instrumentation meters, mechanical and electrical equipment, electrical equipment, pvc tubes, sheetboards and door curtains; and the sale of food and food items, metal materials and plastics. (projects subject to legal approval may not operate without the approval of the relevant department)