The tariff classification of steel tubes from Germany.
The tariff classification of steel tubing from China.
Application for Further Review of Protest No. 0712-13-100009; Classification of SuperSand Filter Components
Internal Advice Request; Eligibility of piping spools for preferential duty treatment under NAFTA and marking as goods of Mexico.
Protest 3307-02-100032; Hollow Drill Bars and Rods; Parts of Drilling Machinery; 201 Steel Safeguard Duties