Orders for small tubes with outer diameters of 30 mm or less whose materials are difficult to procure are after thorough consultation on specifications and material acquisition due to low demand for special materials and metals with specified components and special dissolution. Tohsei Kokan produces tubes required by users using processes suiting specifications and using pipe stretching including three-roll rolling.

Tube materials difficult to procure, such as stainless steel, titanium, high-purity aluminum, niobium, and tantalum, subjected to controlled component content and to special dissolution, high-purity aluminum, niobium, and tantalum.