変更履歴

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305.11 Longitudinally submerged arc welded:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305.12 Other, longitudinally welded:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305.12 Other, longitudinally welded:

7305.12.10 Of iron or nonalloy steel

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305.12 Other, longitudinally welded:

7305.12.10 Of iron or nonalloy steel

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305.12 Other, longitudinally welded:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305.19 Other:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305.19 Other:

7305.19.10 Of iron or nonalloy steel

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305.19 Other:

7305.19.10 Of iron or nonalloy steel

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Line pipe of a kind used for oil or gas pipelines:

7305.19 Other:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

7305.20 Casing of a kind used in drilling for oil or gas:

Of iron or nonalloy steel:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

7305.20 Casing of a kind used in drilling for oil or gas:

Of iron or nonalloy steel:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

7305.20 Casing of a kind used in drilling for oil or gas:

Of alloy steel:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

7305.20 Casing of a kind used in drilling for oil or gas:

Of alloy steel:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Other, welded:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Other, welded:

7305.31 Longitudinally welded:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Other, welded:

7305.31 Longitudinally welded:

Other:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Other, welded:

7305.31 Longitudinally welded:

Other:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Other, welded:

7305.31 Longitudinally welded:

Other:

7305.31.60 Of alloy steel

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Other, welded:

7305.31 Longitudinally welded:

Other:

7305.31.60 Of alloy steel

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Other, welded:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Other, welded:

7305.39 Other:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel:

Other, welded:

7305.39 Other:

7305 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds <il>406.4 mm</il>, of iron or steel: