Other tubes, pipes and hollow profiles, welded, of circular crosssection, of iron or nonalloy steel of an external diameter of < 168,3 mm (excl. plated or coated with zinc and line pipe of a kind used for oil or gas pipelines, casing and tubing of a kind used in drilling for oil or gas, precision tubes and threaded or threadable tubes "gas pipe")
Other tubes, pipes and hollow profiles, welded, of circular crosssection, of iron or nonalloy steel, of an external diameter of < 168,3 mm, plated or coated with zinc (excl. line pipe of a kind used for oil or gas pipelines or casing and tubingof a kind used in drilling for oil or gas)