根据中央关于经济体制改革和设计单位逐步向企业化、社会化方向发展的精神,铁道部决定第一、二、三、四、专业勘测设计院改为公司。对内称铁道部第一、二、三、四、专业勘测设计公司。为便于开拓国内外市场,第一勘测设计公司对外称“中国昆仑 According to the spirit of the central government on the reform of the economic system and the gradual design of design units in the direction of enterpriseization and socialization, the Ministry of Railways decided that the first, second, third and fourth professional survey and design institutes should be changed to companies. Inside said the Ministry of Railways first, two, three, four, professional survey and design company. In order to facilitate the development of domestic and foreign markets, the first survey and design company said "China Kunlun