Tubes, pipes and hollow profiles, seamless, of circular crosssection, of alloy steel other than stainless, of an external diameter of > 168,3 mm but < 406,4 mm (excl. colddrawn or coldrolled, line pipe of a kind used for oil or gas pipelines, casing and tubing of a kind used for drilling for oil or gas, and products of subheading 7304 59 30)
Tubes, pipes and hollow profiles, seamless, of circular crosssection, of alloy steel other than stainless, of an external diameter of > 406,4 mm (excl. colddrawn or coldrolled, line pipe of a kind used for oil or gas pipelines, casing and tubing of a kind used for drilling for oil or gas, and products of subheading 7304 59 30)
Tubes, pipes and hollow profiles, seamless, of circular crosssection, of alloy steel other than stainless, of an external diameter of < 168,3 mm (excl. colddrawn or coldrolled, line pipe of a kind used for oil or gas pipelines, casing and tubing of a kind used for drilling for oil or gas, and products of subheading 7304 59 30)