Fused Silica Investment Casting Shell Tubes from Germany
Unworked fused quartz tubes used as drain/vent lines in ceramic shell investment casting molds for aerospace turbine blades. High-temperature stability prevents shell cracking. Classified 7002.31.00.00 as unworked fused silica tubes.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Thermal expansion coefficient data matches investment casting requirements
• Multiple thin-wall diameters bundled shipment common—invoice separately