G&T Inženjering is trade oriented company which is dedicated to its own development and constant investmet in quality. According to this in a last few months G&T Inženjering sucessfully went through ISO sertification with sertification authority. There are 3 standards: ISO 9001, ISO 14001, ISO 45001 and these standards refere to quality management system, environment management system, health and safety management system. Implementation of these standards in our everyday work has for result improvement of our business with the accent on quality and improved management system.