Ceramic Retort Tube from Mexico
Fired mullite ceramic retort tube for gas purification processes at elevated temperatures in industrial chemical applications. This is shaped from mullite and fired above 800°C, making it a fired refractory ceramic good. Retort tubes are explicitly named in heading 69.03, and the non-clay composition places it under this tariff item.
Duty Rate — Mexico → Canada
0%
Import Tips
• Confirm the retort tube is fired above 800°C, as unfired or low-temperature articles are excluded from Chapter 69
• Keep documentation of the mullite composition and firing process to support the classification
• No import permit is required for these refractory goods