Core Viewpoint - The successful delivery of four large tower devices by Nanjing Yuchuang to Maoming Petrochemical marks a significant milestone in China's domestic manufacturing capabilities for oversized equipment, showcasing the integration of manufacturing, transportation, and installation processes [1][2]. Group 1: Delivery and Transportation - The four large tower devices, including ethylene tower and propylene towers, weigh a total of 3000 tons and have a maximum diameter of 7.8 meters, successfully arrived at Water East Port after a 7-day river-sea transport from Nanjing to Guangdong [1]. - Nanjing Yuchuang established a "daily communication, weekly scheduling" model with Maoming Petrochemical to ensure precise control throughout the transportation process [1]. Group 2: Manufacturing Capabilities - Nanjing Yuchuang has nearly 20 years of experience in on-site prefabrication and assembly welding technology, particularly for oversized equipment, positioning itself as a leader in the market for large tower devices with diameters over 8 meters [2]. - The company has developed a unique "factory direct loading + ten-thousand-ton roll-on/roll-off ship" transportation scheme, effectively overcoming transportation limitations for oversized equipment [1]. Group 3: Innovation and R&D - Continuous investment in research and development has led to the acquisition of 4 core invention patents and 46 utility model patents since 2018, establishing a comprehensive intellectual property protection system [2]. - The patented product "flange connection aluminum-magnesium silo" has maintained the highest market share for five consecutive years and has been recognized with a third prize in the China Petroleum Group Science and Technology Progress Award [2]. Group 4: Engineering Experience - Nanjing Yuchuang has accumulated extensive engineering experience in welding, forming, and heat treatment of materials such as composite plates, low-temperature steel, and special stainless steel, meeting stringent requirements for various working conditions [3].