Shanghai source information technology ltd. (shanghai design) is a high-technology company with information services at its core, network information security, corporate product security, travel safety, product quality traceability, and leading industry projects. Thousands of companies from all walks of life have now chosen to use the company's computer-based solutions and services, such as computer-proofing, security labels, anti-false goods, product traceability, member score management, micro-mail red bags, and anti-mass labels。