In civil engineering, tunneling, and disposal applications, the quality of the sealing system is the top priority. Any leaks can have fatal consequences. Therefore, it is incredibly important that the processing quality fulfills extremely stringent requirements. Not only the material itself and the processor are responsible for this – in large part, so is the tool used to carry out the work. Leister tools not only facilitate incredibly precise welding, they also stand out from the crowd thanks to their ergonomics. They can be relied on, no matter where in the world they are used.