By 28th May, 2019, Normal professional certificate I of German AHK Mechatronics was held in Rhein-Koester Inter-enterprise training center. 64 examinees from AHK Mechatronics class attended the examination, who from the co-established Sino-German class by Zibo Constructional Engineering College, Liaocheng Vocational & Technical College and Rhein-Koester.