Today, 163 years ago, on March 4, 1862 (February 4, 1862), China-Russia signed the Land Traffic Charter. On March 4, 1862, China-Russia Land Traffic Charter was signed in Beijing. Through this charter, Russian commerce at the Chinese border within a hundred miles exempt from tax; "small business" Russian merchants can trade free from tax in Mongolia; Russian merchants from the land route to Tianjin, import tax "three-third reduced"; Russian merchandise shipped to Tianjin, Tianjin, China, can retain two-tenths at home, on the one hand exempt from child tax, on the other hand, the import tax is reduced by one-third; Russian merchants from the home merchandise return to Tianjin only pay