General Terms and Conditions of Zühlke Engineering AG, Schlieren The General Purchasing Conditions are only available in German. gtc-zuhlke-switzerland-april-2019.pdf gtc-academy-zuhlke-switzerland-april-2020.pdf gtc-ams-zuhlke-switzerland-march-2020.pdf gtc-softhardware-maintenance-zuhlke-switzerland-april-2020.pdf aeb-zuehlke-schweiz-januar-2021.pdf