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Guided by professor Ruan jianmin(the associate dean and tutor of Phd of PM)，the six of the faculties and senior students from PM Istitute,Central South University visited our company this morning.They are to progress their one-week graduation design internship here. The PM branch of knowledge in Central South University was founded by the famous academician Huang peiyun,who is now 90 years old ,and this subject has become well-known in the Nation.Conducted by professor Huang boyun,the school now possesses numbers of world-leading achievements as well as a group of outstanding talents.