4-1/2 Inch Intermediate Casing Coupled from Japan
4-1/2 inch intermediate casing of nonalloy steel, seamless with flush threaded couplings for mid-depth oil well support. Prevents formation damage during drilling. 7304.29.10 due to threaded/coupled design for drilling applications.
Duty Rate — Japan → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Ensure 'range 2' or 'range 3' length specs are noted; short joints may classify differently
• Batch testing for sulfur/phosphorus content prevents nonalloy disputes at entry
• Use protective dope on threads; contamination leads to quality claims and delays