Just after the Spring Festival in 2019, the trainer team of Rhein-Koester went to Germany, they went to Hesse Technical Training Center and the Mainz (ILW) Inter-Enterprise Training Center for a five-week refresher seminar and cultural exchange activities in batches.On March 19, 2019, Summary seminar of Trainer's training in Germany was held. The trainers from Qingdao, Zibo, Zhuzhou, Taicang, Weifang and other inter-enterprise training centers participated in the report and showed the learning results, as well as shared training experience.