The materials purchased by Xizang Autonomous Region government cover a wide range, involving many fields. Infrastructure construction is an important part of it, including building materials, road construction equipment and communication equipment. Due to the special geographical environment in Tibet, there is a great demand for infrastructure construction. In addition, medical equipment is also one of the key points of government procurement, which is used to improve the level of medical services and meet the medical needs of the people. Educational supplies are also commonly used materials purchased by the government to support the development of education, including teaching equipment, books and student supplies. These materials were purchased to meet the needs of infrastructure construction, medical services and education development in Xizang Autonomous Region.