Tungsten Carbide Seal Rings from China
Sintered tungsten carbide rings used in mechanical seals for pumps and valves. Falls under HTS 2849.90.30.00 as basic carbide shapes, chemically defined. Offers corrosion and wear resistance.
Duty Rate — China → United States
30.5%
Rate breakdown
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Specify ring ID/OD tolerances as blanks; documentation must exclude 'finished seals'
• Comply with API standards declarations