Changzhou Changrong Precision Electronics Co., Ltd. has a total investment of nearly 100 million yuan and is a subsidiary of Jiangsu Changrong Electric Co., Ltd. It has a clean data intelligent factory of more than 8,000 square meters, and has 6 Panasonic automatic SMT production lines and MES management system. And has Wuxi Rongcheng Electronics Co., Ltd. as a research and development center. The R&D center consists of an expert team of nearly 30 people including doctors and masters. More than 60% of them have master's degrees. They are all from foreign-funded enterprises and listed companies, and have more than 20 years of R&D experience in the industry. The R&D center has independent R&D and design software and hardware capabilities and a mature home appliance system development platform. The company has invested in various advanced equipment for environmental reliability, EMC, safety regulations, and harmful detection for new product research and type experiments. It can detect various device parameters, and can detect ICT, automatic FCT and AOI in the production process of PCBA.