Quartz Fiber Continuous Yarn from Germany
High-purity quartz fiber yarn for extreme temperature aerospace applications. Included in HTS 7019.90.51 per Chapter 70 note defining 'glass' to include fused quartz/silica. Purity exceeds 99.9% SiO2.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Provide purity certificates >99.9% SiO2; declare maximum service temperature; differentiate from synthetic silica products