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Teacher Gao Yuzhong (R1) from the Qingdao Technicians College guides students to make 3D printing works. With the development of new technological industry 3D printing, some of vocational schools in Qingdao offer the specialty of 3D printing and courses including 3D product design, 3D scanning reverse engineering and 3D printing equipment operation, maintenance and control to meet the demand of market for 3D printing personnel. [China.org.cn]