Recently some part of KELLER team had an opportunity to visit our German supplier of inks, Pröll company. 2 days training was concerning subjects related with inks, especially news and challenges which we face nowadays in the business. The meetings were led in a practical way, we could have experienced work in a lab with mixing inks or manufacture our own screen and print a pattern on it. Pröll company comes from Bavaria and it has had tradition for over 80 years. Hospitality and professionalism of our German partners made great impression on us.