7304.24.30

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Other, of stainless steel: Casing: Threaded or coupled Having an outside diameter less than 215.9 mm: Having a wall thickness less than 12.7 mm

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Other, of stainless steel: Casing: Threaded or coupled Having an outside diameter less than 215.9 mm: Having a wall thickness of 12.7 mm or more

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Other, of stainless steel: Casing: Threaded or coupled Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: Having a wall thickness less than 12.7 mm

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Other, of stainless steel: Casing: Threaded or coupled Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: Having a wall thickness of 12.7 mm or more

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Other, of stainless steel: Casing: Threaded or coupled Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Other, of stainless steel: Casing: Threaded or coupled Having an outside diameter exceeding 406.4 mm