It is always a great day at tunnelbuilder when one of its established clients steps up to sponsor our flagship website. PPS guidance systems are precision-made in Germany and used throughout the world. Currently, PPS is guiding machines in more than 50 locations, including Limmern in Switzerland and Waikiki in Hawaii. For more, click on the PPS sponsor’s logolink or visit www.pps-muc.com. 17/13.