December 21, 1949, was Stalin's 70th birthday. Communist Party leaders of all countries went to wish for their birthdays, and Mao Zedong was no exception. From December 1949 to February 1950, Chairman Mao Zedong paid an official visit to the Soviet Union at the invitation of Stalin. Wishing Stalin a happy birthday was one of the purposes of Mao Zedong's visit to the Soviet Union. On December 1, Mao Zedong sent a telegram to the Shandong Branch of the Communist Party of China that Comrade Stalin was celebrating his seventieth birthday, and the Central Committee decided to send Shandong's yellow buds and chinese cabbage and green onions from Shandong, Weifang's large white radish, and Yantai's large pears as birthday gifts. It is necessary to purchase 5,000 kilograms of these four specialties before December 4, a total of 20,000 kilograms, and the central government will send a charter flight to Jinan to pick up and transport them. Chairman Mao Zedong specifically explained that these items must be the best. The birthday gift also included a silk portrait of Grand Marshal Stalin and two porcelain portraits. The gift was filled with three train wagons. Another priceless treasure is that Mao Zedong, on the morning of Stalin's birthday, stayed at the hotel, and wrote a pair of life unions with a brush on rice paper and in extra large characters: Furu Donghai, Shoubi Nanshan. The payment was "Central Committee of the Communist Party of China", and it was not "Mao Zedong" as usual. There are very few such payments. When the Soviet Union was sending the Shou Lian, the Chinese interpreter Shi Zhe told Stalin the allusions of "East China Sea" and "Nanshan", and the two top leaders of China and the Soviet Union were very happy.
Shortly after Mao Zedong's visit to the Soviet Union, Stalin also gave a fairly heavy gift to the four secretaries of the CPC, Zhu De, Liu Shaoqi, Zhou Enlai, and Ren Bishi: each of them a "Gies" brand bulletproof car. The word "Si" for "Gies" means Stalin.