As the product of the deep integration of the new generation of information technology and manufacturing industry, the industrial Internet has increasingly become the key support of the new industrial revolution and the important cornerstone of deepening the "Internet plus+advanced manufacturing industry". The industrial internet platform, as a solid "foundation" for building the digital economy industry, plays an important driving role in cultivating and strengthening digital momentum, empowering enterprises to transform and upgrade. Recently, the organizing committee of the 5th China Industrial Internet Competition organized central media to visit Ningbo and conduct research activities to understand how the local area actively develops the digital economy and creates an industrial internet ecological industry chain. Creating a strong atmosphere of industry, academia, and research, the industrial internet plays an important role in assisting enterprises in digital transformation and promoting intelligent manufacturing. The Ningbo Municipal Government actively creates an innovative ecosystem for the industrial internet industry and launched the construction of the headquarters base of the Industrial Internet Industrial Park (Yongshuiqiao Science and Technology Innovation Center) in December 2019. By introducing a group of high-end innovative talents and technology innovation teams, the industrial park has connected various links from technology research and development to achievement transformation. It has gathered more than 40 upstream and downstream enterprises in the industrial internet industry chain, including industrial internet, artificial intelligence, industrial control security, control chips, industrial software, intelligent manufacturing, etc. Located in the industrial park, Ningbo Industrial Internet Research Institute is a new research and development institution specializing in cutting-edge fields such as industrial Internet, intelligent manufacturing, and artificial intelligence. It has successfully incubated nearly 20 high-tech companies. At present, Ningbo Industrial Internet Research Institute has gathered over 600 high-tech and other talents, with one academician workstation and one postdoctoral workstation each. It has built an "integrated attack, defense, and evaluation" industrial control safety testing ground, becoming an important base for leading domestic industrial control safety. Fine Metal Mask (FMM) is an essential consumable material in the new AMOLED evaporation process in the field of display, which is essential for building an industrial internet ecological industry chain. The manufacturing level of the mask directly affects the resolution and image quality of AMOLED display panels. In order to improve the manufacturing process level of mask plates, Huancaixing Technology (Ningbo) Co., Ltd. has integrated AMOLED display technology and FMM engineering technology, and proposed the use of roll to roll double-sided precision etching process. According to Wu Bin, Deputy General Manager of Huancaixing Technology, the current total investment for Phase III is 1.2 billion yuan, and it is planned to build 10 metal mask production lines. After completion, it will have a complete industrial chain with the production and supply capacity of metal mask products. In this process, in order to further improve yield, digital intelligent transformation will become a top priority. The support for the digital transformation of Huancaixing is also from local Lanzhuo digital technology. By creating a supOS industrial operating system with independent intellectual property rights, Lanzhuo Digital Technology assists in industrial digital transformation through the "platform+industrial apps" model. Since 2020, Lanzhuo SupOS has been rated as a national cross industry and cross domain industrial internet platform for four consecutive years, and has won the championship of the 4th Industrial Internet Competition. At present, Lanzhuo has built over 4100 new intelligent factories in 30 industries worldwide, including cement, petrochemical, chemical, building materials, and metallurgy, with a "platform+industrial apps" model