Low-Expansion Glass Tubes for Vacuum Systems from Japan
Unworked glass tubes of low thermal expansion borosilicate for high-vacuum applications like vacuum manifolds and seals in scientific equipment. Falls under 7002.32.00.00 as unworked tubes meeting the precise expansion coefficient requirement.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide technical specs documenting the 0-300°C expansion coefficient to prevent misclassification as ordinary glass
• Use wooden crates with dividers for transport; breakage claims common without proper packing declaration