The Lance Hose Assembly is needed to deliver oxygen to a Basic Oxygen Furnace (BOF). The heat of the surrounding environment, the frequent handling and mishandling of the hoses, and the need to maintain strict cleanliness present a set of challenges for engineers and maintenance personnel. Lances are typically six, eight or ten inches in diameter, fitting into this second category where neither metal nor rubber have a definitive edge in terms of flexibility. Lance Hose Assembly is very useful.