Having a wall thickness of 12.7 mm or more but less than 19 mm

730459 Other:

7304591000 Suitable for use in the manufacture of ball or roller bearings

73045920 Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters

7304592030 Of heat-resisting steel

7304592040 Having an outside diameter less than 38.1 mm

7304592045 Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm

7304592055 Having an outside diameter exceeding 114.3 mm but less than 190.5 mm

7304592060 Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm

7304592070 Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm

7304592080 Having an outside diameter exceeding 406.4 mm

7304596000 Of heat-resisting steel

73045980 Other

7304598010 Having an outside diameter less than 38.1 mm

7304598015 Having a wall thickness less than 6.4 mm

7304598020 Having a wall thickness of 6.4 mm or more but not exceeding 12.7 mm

7304598025 Having a wall thickness exceeding 12.7 mm

7304598030 Having a wall thickness less than 12.7 mm

7304598035 Having a wall thickness of 12.7 mm or more but less than 19 mm

7304598040 Having a wall thickness of 19 mm or more

7304598045 Having a wall thickness less than 12.7 mm

7304598050 Having a wall thickness of 12.7 mm or more but less than 19 mm

7304598055 Having a wall thickness of 19 mm or more

7304598060 Having a wall thickness less than 12.7 mm

7304598065 Having a wall thickness of 12.7 mm or more but less than 19 mm

7304598070 Having a wall thickness of 19 mm or more

7304598080 Having an outside diameter exceeding 406.4 mm