Tariff number Chapter 70, Section 20
7020
Other articles of glass
7020000000 80
Other articles of glass
7020000500 80
- Quartz reactor tubes and holders designed for insertion into diffusion and oxidation furnaces for production of semiconductor materials
7020000700 10
- Glass inners for vacuum flasks or for other vacuum vessels
7020000700 80
- - Unfinished
7020000800 80
- - Finished
7020001000 10
- Other
7020001000 80
- - Of fused quartz or other fused silica
7020003000 80
- - Of glass having a linear coefficient of expansion not exceeding 5 !x! 10$-$6 per Kelvin within a temperature range of 0 °C to 300 °C
7020008000 80
- - Other