Dolomite Stopper Rods for Steel Teeming from Mexico
Refractory stopper rods with dolime heads for controlling ladle steel flow. HTS 6815.91.00 classification for dolomite-containing mineral articles. Essential for secondary steel refining.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include assembly diagrams showing dolime tip composition
• Separate from alumina stoppers (6815.92)
• Thermal shock resistance specs validate use