Borosilicate Watch Glass 100mm from Mexico
Concave 100mm watch glass cover for beakers, made of low-expansion borosilicate to handle heating and cooling cycles in labs. Prevents contamination during experiments. HTS 7017.20.00.00 due to thermal properties.
Duty Rate — Mexico → United States
16.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify 'for laboratory use only' on invoices to prevent consumer goods misclassification
• Test for expansion coefficient if using non-standard suppliers
• Bundle with beakers as sets only if not sold separately