Fused Quartz Optical Fiber Drawing Tubes from Mexico
Precision unworked tubes of fused silica used in optical fiber preform collapse and drawing towers. Their clarity and low impurity levels are critical for single-mode fiber production. HTS 7002.31.00.00 applies to these unworked fused quartz tubes.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide OH-content and defect specifications proving suitability only for fiber optics
• Outer diameter tolerances listed but emphasize no precision machining performed
• Customs may challenge large-diameter tubes (200mm+ OD) as 'articles' vs raw material