They are mainly produced by Train 2 at the Belval site, except for the HZ® range, which is produced by the Grey Train at the Differdange site. Train 2 manufactures the AZ® sheet pile range, which includes the widest sheet pile in the world, the AZ®-800. They are used to retain soil or water in order to create quay walls, dikes, underground car parks, tunnels, bridges or road infrastructures.