The registration address of deep-shang tsai ltd. Is located in the stone streets of shenzhen city, in the rock streets of shenzhen city, at the sen heinoko building, no. 1, and is the shenzhen market supervision authority, represented by a legal person, and covers the development and sale of instrument instruments, security equipment, industrial control equipment, sensors, gas analysis instruments, automated systems and industrial engineering systems; domestic trade; and the import and export of goods and technology. E-commerce; development and sale of computer software, goods network products, information systems software; integrated circuit design, research and development; technical research and development of environmentally friendly products, technical advice. Gas and air environment monitoring instrument, water quality online monitoring sensor instrument, soil online monitoring sensor instrument, gas analysis instrument development, product design and marketing. General mechanical equipment installation services; information systems operation maintenance services; electronics, mechanical equipment maintenance (excluding special equipment); information systems integration services; electrical equipment repairs; generic equipment manufacturing (excluding special equipment manufacture); specialized equipment manufacturing (excluding licensed professional equipment manufacture); software development; material networking technology services; industrial internet data services; data processing and storage support services; information technology advisory services; digital content production services (excluding publication and distribution); internet security services; internet data services; and material network applications services. • electrical installation services (in addition to legally approved projects, operating autonomously on the basis of a licence); internet platform. The construction of end-test equipment (subject to the approval of the relevant department and subject to the approval of the relevant department), end-test equipment, the manufacture of end-measurement equipment, the manufacture of cloud computing equipment, the manufacture of network equipment, the manufacture of electronic (gas) physics equipment and other electronic equipment, the manufacture of electrical signal equipment devices, the manufacture of instrument instruments, the manufacture of special instrument instruments for environmental monitoring and the manufacture of electronic devices。