Kub dov steel phaj pawg: Qhov ntev yog feem ntau txwv, feem ntau yog 9 meters, 12 meters, 15 meters, 18 meters, 400 dav, 600 dav feem ntau, thiab lwm yam dav yog tsawg. Tsuas yog Luxembourg steel ntawv pawg muaj ntau qhov dav dav. Tam sim no, nws tsuas yog siv hauv cofferdams nrog ntau qhov haujlwm ib ntus thiab cov dej sib sib zog nqus, nrog rau cov haujlwm tshwj xeeb ruaj khov. Qhov dej-tawm cov nyhuv feem ntau zoo dua li qhov txias txias. Lub khw muag khoom loj dua thiab nrhiav tau yooj yim dua. Tus nqi tam sim no yog me ntsis siab dua qhov txias khoov.