Welcome to Paul Köster GmbH. As a special mechanical engineering company, we are focused on leak testing, assembly technology ... , and automation for the automotive sector, medical engineering and other industries. With more than 40 years of mechanical engineering experience, we live our values and insist on quality in everything we do. Legal notice: https://www.paul-koester.com/imprint/ Privacy policy: https://www.paul-koester.com/privacy-policy/ read more