Borosilicate Watch Glass 100mm from United States
A 100mm concave watch glass made of low-expansion borosilicate, used to cover beakers and prevent contamination during experiments. Its thermal shock resistance and glass composition align with tariff item 7017.20.00.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the watch glass is unworked beyond cutting or shaping, as per chapter note 2
• Declare under 7017.20.00, and provide product specifications for thermal expansion