The registration address of tianjin vacuum electronics (quinshan) ltd. Is located at 1288 chonghua road, quanshan township, and is the administrative approval authority of qunshan city. The legal entity is represented by liu zhong, and operates in the areas of mechanical and electrical equipment, vacuum equipment and accessories, mechanical equipment, metal materials, electronics, lubricants, hardware and power, vacuum plating materials, chemical products (without dangerous chemicals); vacuum pumps, vacuum plating equipment, refrigeration equipment, mechanical equipment, updoor installation, maintenance, repair of mechanical equipment; design, construction of integrated network wiring works; and export and import operations for the aforementioned products and technologies. (projects subject to legal approval may not operate without the approval of the relevant department)