A few days ago, the China Shipbuilding Industry Association released data that from January to October this year, the national shipbuilding completed 30.87 million deadweight tons, down 3.6% year on year; The number of newly accepted ship orders was 37.4 million deadweight tons, down 39.2% year on year. As of the end of October, the number of orders for handheld ships was 104.44 million deadweight tons, up 6.5% year on year. "Influenced by the epidemic situation in Shanghai and the nationwide hot weather in July and August, the Yangtze River Delta industrial cluster could not fully reach its production capacity, and some enterprises even stopped production, which led to a decline in the number of completed ships. A large decline in the number of orders for new ships was expected." Zheng Yiming, director of the Statistics and Information Department of China Shipbuilding Industry Association, analyzed that as the number of orders received from 2019 to 2020 was less than 30 million deadweight tons, the shipbuilding industry had the characteristics of long lead time delivery, so this year's completion showed a downward trend. In terms of the indicators for the whole year, the decline will gradually narrow and is expected to be controlled within 5%. In 2021, the global new ship market will recover strongly. China will undertake 67070000 deadweight tons, accounting for 53.8% of the world's total, which is the fourth highest in history since 2003. Therefore, the callback in the second year is normal and healthy. From January to October, China's shipbuilding completion, new orders and hand orders accounted for 45.8%, 54.3% and 48.7% of the global total in terms of deadweight tons, respectively, ranking the top in the world, which shows that China still holds a large international market share. In 2021, container ship orders will increase significantly, and China's container ship market share will account for 60.9% of the global market; In 2022, the automobile transport ship market will be hot, and China's automobile transport ship orders will account for 83% of the world's total, maintaining strong competitiveness. Thanks to China's complete shipbuilding system, it is able to build all ship types in the merchant shipping field, and can closely follow the market demand in the shipping market rotation cycle. In addition, China's shipbuilding enterprises have large central enterprises, private backbone shipyards, as well as manufacturing single event champions and specialized new enterprises that have worked hard in subdivided fields for many years. This not only ensures the advantages of traditional ship types such as bulk carriers, container ships and oil tankers, but also has strong competitiveness in high value-added ship types such as chemical tankers, automobile carriers and marine auxiliary ships. Among the 18 major ship types in the world, China's new orders for 10 ship types rank first in the world. It is worth mentioning that from January to September, the national shipbuilding completed volume reached 9.16 million corrected gross tons, an increase of 6.5% year on year. The repair load ratio (corrected gross tons/deadweight tons, usually used to compare the proportion of high value-added ship types under different units) of newly accepted ship orders was 0.47, and 0.38 in 21, which shows that the delivery proportion of high-tech and high value-added ships in China has gradually increased. Among them, LNG ships, known as the pearl in the crown of shipbuilding industry, are eye-catching. The construction of LNG ships is a technology intensive and capital intensive project. The maritime transportation of liquefied natural gas requires high safety. It is not only necessary to ensure the transportation at minus 163 ℃, but also to minimize its evaporation rate. Therefore, the construction of the shipboard enclosure system is the key to highly test the comprehensive strength of the builders. China Ship Collection