We are proud to renew the Plastic Welder Certificates obtained from TÜV SÜD, the international certification organization for many management systems.
Our participating membrane masters got full marks in the theoretical and practical tests. Some of our membrane masters have renewed their certificates. On the other hand, some of our masters, who became competent in their field thanks to the training we provided, received their new certificates.
Yesti Group, which has taken part in many prestigious projects in the country and abroad with its quarter-century experience and cooperates with many respected and valuable companies, continues to provide services at world standards with all the quality certificates it has received.
