On the night of June 17th, two 250 ton heat exchangers for the propane dehydrogenation project arrived at the Yangtze River wharf. With the coordination of all parties, on the morning of June 18th, dock workers worked overtime to load and transport these two overweight equipment. On the early morning of June 19th, two devices arrived at Shanghai Port. Two devices and thousands of tons of other devices were successively shipped and concentrated at Shanghai Port, marking an important milestone for the project.