Duty Rate (from China)
Subheadings
Products classified under Tariff item 7320.90
Anti-Shock Breguet Hairspring
A specialized hairspring for mechanical watch movements, featuring a Breguet terminal curve and anti-shock mounting pins. Constructed from steel wire, it regulates the oscillation of the balance wheel for precise timekeeping, falling under tariff item 7320.90.00 as an 'other' spring of iron or steel.
7320.90.00Belleville Disc Spring
A conical disc-shaped steel spring that stacks for high load capacity, used in bolted joints and safety valves. It falls under tariff item 7320.90.00 as an 'other' spring of iron or steel, not elsewhere specified.
7320.90.00Bowed V-Spring Washer
A V-profile steel washer spring providing light axial force in assemblies. It is classified under tariff item 7320.90.00 as an 'other' spring of iron or steel, distinct from flat washers.
7320.90.00Brelet Breguet Overcoil Hairspring
A Breguet-style overcoil hairspring for chronometer-grade watches, made from high-elasticity steel to minimize isochronism errors. This steel wire spring is designed for precise timekeeping and falls under tariff item 7320.90.00 as an 'other' spring of iron or steel.
7320.90.00Cantilever Spring Arm
A single-arm steel spring deflecting under load for parking brakes and levers. It falls under tariff item 7320.90.00 as an 'other' spring of iron or steel, not being a leaf spring.
7320.90.00Clock Spring for Steering Columns
A flat spiral steel spring wound in a clock-like coil for storing rotational energy in turn signal mechanisms. It is classified under tariff item 7320.90.00 as an 'other' spring of iron or steel, not being a clock or watch spring.
7320.90.00Constant Force Spring Reel
A pre-stressed steel strip wound into a reel that exerts uniform force over extension, used in retractable cords and tape measures. It falls under tariff item 7320.90.00 as an 'other' spring of iron or steel.
7320.90.00Die Spring for Presses
A heavy-duty rectangular or round steel spring used in die sets for stamping presses to cushion impact. It is classified under tariff item 7320.90.00 as an 'other' spring of iron or steel, meeting the wire dimension limits.
7320.90.00Garolite Compression Spring
A cylindrical steel pin with an axial slot that compresses for press-fit insertion, functioning as a spring pin in assemblies. It is classified under tariff item 7320.90.00 as an 'other' spring of iron or steel, distinct from ordinary pins.
7320.90.00Glucydur Hairspring for ETA Movements
A Glucydur Nivaflex hairspring optimized for ETA automatic watch calibers, providing temperature-stable oscillations. Made from steel wire, it functions as a spring in the watch movement and is classified under tariff item 7320.90.00 as an 'other' spring of iron or steel.
7320.90.00Incabloc Shockproof Hairspring
An Incabloc system hairspring with integrated shock protection for luxury mechanical watch movements, made from tempered steel wire. It serves as a spring regulating the balance wheel and falls under tariff item 7320.90.00 as an 'other' spring of iron or steel.
7320.90.00Nivachron Hairspring for Rolex Movements
A Nivachron chronergy hairspring with optimized leg design for Rolex Caliber 3235, offering antimagnetic properties from a steel base. This steel wire spring regulates the balance wheel and is classified under tariff item 7320.90.00 as an 'other' spring of iron or steel.
7320.90.00Nivarox Hairspring for Mechanical Watches
A Nivarox alloy hairspring designed for high-precision mechanical watches, regulating the oscillation of the balance wheel. Made from iron or steel wire, it falls under tariff item 7320.90.00 as an 'other' spring of iron or steel.
7320.90.00Precision Flat Hairspring for Pocket Watches
A flat spiral hairspring for antique-style pocket watch restoration, made from blued steel wire. It functions as a spring in the watch movement and is classified under tariff item 7320.90.00 as an 'other' spring of iron or steel.
7320.90.00Silicon-Coated Steel Hairspring
A steel hairspring with silicon coating for anti-magnetic properties in modern mechanical watches, maintaining a traditional spiral form. The base material is iron or steel wire, and it falls under tariff item 7320.90.00 as an 'other' spring of iron or steel.