During the early 1950s, the Union of Soviet Socialist Republics
and the Peoples' Republic of China shared one of their few periods
of cooperation. So much so that the Soviet Union agreed to share
certain technology with China, including construction instruction
methods and right to construct the SKS rifle. As a result, in 1956,
the Soviet Union sent technicians, parts and equipment to China
to get the armory rolling for Chinese-made SKS rifles.