Translation of superconductor in German

Mr. Chang informed me that you have a customer that requires similar applications to what my customers have here in Switzerland. I am planning my next trip and I will consider visiting you too.
Let me summarize our meeting from Sunday, please give me feedback if something is unclear. I will send you the study material, including lessons and vocabulary lists to ensure the accuracy of training.
We could not find a nice hotel so we just took whatever we found in the center of town. We were a little upset with the entire stress, so that we had left our bags in the cab when it drove away.