1949年中华人民共和国成立后，百业待兴，为了尽快恢复国民经济，收拾国民党遗留下来的烂摊子，1950年毛主席到莫斯科和斯大林签订了中苏友好条约，并签署了四个中苏合营企业合同。除中苏造船厂在大连外，其它中苏民航公司、中苏石油公司及中苏有色及稀有金属公司都在新疆。中 After the founding of the People’s Republic of China in 1949, the industry was waiting for prosperity. In order to resume the national economy as soon as possible and pack up the mess left over by the Kuomintang, Chairman Mao went to Moscow and Stalin in 1950 to sign the Sino-Soviet Treaty of Friendship and signed four Sino-Soviet joint venture contracts . Besides Sino-Soviet shipyards in Dalian, other Chinese and Soviet civil aviation companies, Sino-Soviet oil companies and Sino-Soviet nonferrous metals and rare metals companies are all in Xinjiang. in