General Projects: Testing machine manufacturing, Optical instrument manufacturing, Instrument Manufacturing, Drawing、 Computing and measuring instrument manufacturing, Testing machine sales, Optical instrument sales, Instrument sales, Drawing、 Sales of computing and measuring instruments, Instrument repair, Import and export of goods, Technology import and export, Import and export agent, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)