Import and export It can be divided into two channels: simple import and import along with the complete set of projects. In recent years, several major coastal ports in China (Dalian, Tianjin, Qinhuangdao, Lianyungang, etc.) are building and expanding the automatic loading and unloading project of bulk import and export commodities such as oil, coal and grain. With the introduction of main equipment, the import volume of large channel steel is also increasing. The main producing countries and regions are Japan, Russia and Western Europe. Export channel steel is mainly exported to Hong Kong and Macao.