Other, welded, of circular crosssection, of other alloy steel
Tubes, pipes and hollow profiles, welded, of circular crosssection, of alloy steel other than stainless (excl. tubes and pipes having internal and external circular crosssections and an external diameter of > 406,4 mm, and line pipe of a kind used for oil or gas pipelines or casing and tubing of a kind used in drilling for oil or gas, and precision steel tubes)