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美国进口关税
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纵向埋弧焊接：
事实不足，待确认待确认：当前条目与已核对资料版本或完整路径不一致，判别条件待重新核实
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: · Line pipe of a kind used for oil or gas pipelines: · Longitudinally submerged arc welded:
其他，纵向焊接：
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: · Line pipe of a kind used for oil or gas pipelines: · Other, longitudinally welded:
Line pipe of a kind used for oil or gas pipelines: — 其他：
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: · Line pipe of a kind used for oil or gas pipelines: · Other:
石油或天然气钻探用套管：
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: · Casing of a kind used in drilling for oil or gas:
纵向焊接：
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: · Other, welded: · Longitudinally welded:
Other, welded: — 其他：
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: · Other, welded: · Other:
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: — 其他：
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: · Other:
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