Secoroc Hollow Extension Rod T38
Secoroc T38 hollow extension drill rod, alloy steel, for production drilling in surface mines. Classified HTS 7228.80.00.00 as hollow drill rod with fatigue-resistant metallurgy. Used in blasthole drilling rigs.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If welded construction
Welded drill pipes classify in welded tubes of 7306.
If non-alloy steel version
Identical hollow drill bars of non-alloy steel remain here but flagged separately.
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Import Tips & Compliance
• Provide fatigue and impact test data supporting drill bar classification
• Distinguish from concrete reinforcing (note c) with mining drill specs
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