a) Dear Mr Schmitt, b) Nanomechanics, Inc. 8 Penn Plaza, New York, NY, 10004 Phone: 210-630-2010 16 January, 2020 c) We are awfully sorry to hear that you have problems with our new nanoengineering equipment. We have studied the complaint and found the most likely reason. We can assert that it is of faulty operations. We attach the result of the inspection analysis. If you want us to change the equipment, you can contact us at the above-mentioned number. d) The Technical University of Munich, Walter Schmitt 34 Arcisstraße, 80332 München, Germany e) Yours sincerely, ______________