Guangzhou CTR Precision Machine Limited Company was established in 2006 and registered in the South China New Materials Innovation Park, No. 31 Kefeng Road, Guangzhou High tech Industrial Development Zone. It is a technology innovation oriented high-tech enterprise that integrates technology research and development, design, production, manufacturing, and sales services. In 2018, it passed the Guangdong Province High tech Enterprise Certification and obtained the certificate. The company's registered Chinese trademark is "Sijun Tongxian". Sijun Tongxian is committed to the intelligent transformation and upgrading of factories. For over 10 years, it has been dedicated to providing manufacturing factories with real-time industrial data LED visualization systems and comprehensive solutions for factory automation systems. The company passed the expert review meeting of Guangdong Equity Trading Center in 2019 and was successfully listed with the equity code 880159. Sijun Tongxian (Sijun Tongxian is the Chinese trademark of Guangzhou Sijun Company) offers a full range of LED industrial screens - an industrial data visualization system aimed at industrial applications. For the first time in the industry, it perfectly integrates industrial configuration software technology, industrial network communication technology, and LED display motion technology. It comes with a communication interface hard core and software protocol core, completely free of secondary development programming, and can achieve real-time data direct connection with mainstream fieldbus protocols (such as Profibus, Modbus, CC Link, Can...) and industrial Ethernet protocols (such as Profinet, Ethernet/IP, Modbus TCP...) in the field of factory automation.